Sowing machine with soil covering mechanism

Abstract

The utility model discloses a seeder with a soil covering mechanism, which belongs to the technical field of seeding and comprises a frame, traveling wheels mounted below the frame, a plurality of seeding mechanisms mounted on the frame along a cross beam of the frame at intervals, and a connecting frame arranged on each seeding mechanism. A furrow opener is mounted on the front side of the seeding mechanism below the connecting frame, a soil covering device is mounted on the rear side of the seeding mechanism and comprises a soil covering mounting plate, the soil covering mounting plate is connected with the connecting frame through bolts, two arc-tile-shaped soil covering plates are symmetrically arranged below the soil covering mounting plate, and the two soil covering plates are arranged in a splayed shape; an opening between the two soil covering plates directly faces the furrow opener, and the front-end opening is larger than the rear-end opening. The soil coverer and the furrow opener of the seeder are simultaneously mounted on the front side and the rear side of the seeding mechanism and are matched for use, so that the soil covering quality of seeds is improved, the soil covering thickness is ensured, incomplete covering or covering soil floating on the surface is prevented, normal development and production of the seeds are ensured, and the emergence rate is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of sowing, and in particular relates to a sowing machine with a soil covering mechanism. Background Art

[0002] Sowing is one of the key steps in crop planting. In modern agricultural production, people mostly use seeders to assist in the sowing of crops. However, the existing seeders can only sow seeds in a single process, and manual covering of the seeds is required after sowing, which is labor-intensive. In order to solve the above technical problems, some people have installed a pressing roller behind the sowing mechanism of the seeder, and the seeds are covered with soil by the rotation of the pressing roller. However, due to the rotation of the pressing roller plane, the soil around the seeds cannot be lifted to cover the seeds, and the covering effect is not good.

[0003] A Chinese patent with announcement number CN222235506U discloses a soil covering structure of a seeder, the seeder includes an armrest frame connected to a machine body, the sowing mechanism includes a covering wheel, a plow board and two connecting rods arranged in parallel and fixedly connected to the armrest frame, the covering wheel is rotatably connected between the two connecting rods, the plow board is connected to the two connecting rods and is located between the machine body and the covering wheel, the plow board is in the shape of an elongated strip and is arranged downwardly inclined toward the front end of the armrest frame, plowing parts are provided on both sides of the lower end of the plow board, and the lower end of the plow board is located between the two plowing parts to form a clearance groove, ensuring that the plow board can avoid the seed pit during the plowing process, thereby preventing the seeds from being turned out. In conjunction with the drawings in the specification of the application, it can be seen that the soil on both sides of the seed pit is lifted up by a plow board and then covered with soil by a covering wheel. However, the presence of the give way groove means that only a small amount of soil lifted up by the plow board is turned into the seed pit. After the covering wheel has rolled over, the seeds are not completely covered or the covering soil floats on the surface, resulting in a poor covering effect, which not only affects the development and growth of the seeds, but is also easily turned out and eaten by birds, reducing the germination rate. Utility Model Content

[0004] The utility model aims to provide a seeder with a soil covering mechanism, which also has a soil covering function, which not only reduces manual labor, but also can turn the soil on both sides of the seed pit into the seed pit to cover the seeds, thereby solving the problem of incomplete covering of existing equipment or soil floating on the surface, and preventing birds from eating seeds and affecting the emergence rate.

[0005] The technical scheme adopted by the utility model is a seeder with a soil covering mechanism, comprising a frame, a walking wheel is installed under the frame, a sowing mechanism is installed on the frame, a plurality of sowing mechanisms are arranged at intervals along the cross beam of the frame, each sowing mechanism is provided with a connecting frame, a furrow opener is installed at the front side of the sowing mechanism below the connecting frame, and a soil covering device is installed at the rear side, the soil covering device comprises a soil covering mounting plate, the soil covering mounting plate is screwed to the connecting frame, two arc-shaped tile-shaped soil covering plates are symmetrically arranged below the soil covering mounting plate, the two soil covering plates are arranged in an eight-shaped shape, an opening between the two soil covering plates is directly opposite to the furrow opener, and the front end opening is larger than the rear end opening, the discharge port of the sowing mechanism is located between the furrow opener and the soil covering device, and the midlines of the furrow opener, the discharge port and the soil covering device are located on the same straight line.

[0006] Preferably, the middle part of the top surface of the above-mentioned soil covering mounting plate is fixedly connected to the lower end of the second connecting rod vertically arranged on the rear side of the bottom of the connecting frame, and two mounting holes are symmetrically opened on the soil covering mounting plate on both sides of the second connecting rod. A screw rod is fixedly connected to the middle part of the top of the soil covering plate, and after the top of the screw rod passes through the mounting hole, two nuts are used to clamp the soil covering mounting plate and tighten it.

[0007] Preferably, the above-mentioned trenching device includes a trenching mounting plate, the middle part of the top surface of the trenching mounting plate is fixedly connected to the lower end of the connecting rod vertically arranged on the front side of the bottom of the connecting frame by screws, a trenching shovel is provided below the trenching mounting plate, and a V-shaped trenching part is provided at the bottom of the trenching shovel.

[0008] Preferably, two connecting ear plates are vertically symmetrically provided on the bottom surface of the trenching mounting plate, and fixing plates are provided on both sides of the trenching shovel corresponding to the connecting ear plates. Connecting holes are provided on the fixing plates and the connecting ear plates correspondingly. The trenching shovel is fixedly connected between the two connecting ear plates by bolts passing through the connecting holes, and the lower end of the V-shaped trench part is tilted forward.

[0009] Preferably, the above-mentioned sowing mechanism includes a storage chamber and a discharge pipe, the storage chamber is located above the discharge pipe and is connected with the discharge pipe, a feed port is provided at the top of the storage chamber, a discharge port is provided at the bottom of the discharge pipe, and a discharge assembly is provided in the discharge pipe for adjusting the seed interval discharge; a slide groove is provided in the middle part of the crossbeam of the frame, the discharge pipe penetrates the crossbeam through the slide groove, and the storage chamber is located above the crossbeam and is slidably connected with the crossbeam, fixed limit rods are provided on both sides of the storage chamber, a plurality of fixing holes are provided on the crossbeams on both sides of the slide groove, two limit plates are provided at both ends of the fixed limit rod, the two limit plates are connected with the crossbeam bolts on both sides of the slide groove through the fixing holes, a step groove is provided at the top of the slide groove, an annular slide plate is provided at the lower end of the storage chamber, and the annular slide plate is fixed and limited by the limit plate after being embedded in the step groove, and the connecting frame is provided at the lower part of the discharge pipe.

[0010] Preferably, the above-mentioned discharge component includes a rotating shaft that is vertically rotated and connected to the discharge pipe, one end of the rotating shaft extends out of the discharge pipe to connect to the driving mechanism, the driving mechanism is a discharge micro motor, and the discharge micro motor is fixedly connected to the outer wall of the discharge pipe through a bracket. A plurality of rotating blades are evenly spaced circumferentially on the rotating shaft inside the discharge pipe, and the inner end of each rotating blade is fixedly connected to the rotating shaft along the axial direction of the rotating shaft, and a scraper is provided at the outer end of the rotating blade. The scraper has an arc surface that is consistent with the shape of the inner wall of the discharge pipe, and the scraper is in active contact with the discharge pipe, wherein the seed diameter is smaller than the distance from the scraper to the rotating shaft and larger than the distance from the side of the rotating blade to the wall of the discharge pipe, and the rotating blade and the scraper cooperate to intercept the seeds in the discharge pipe.

[0011] Preferably, a rotary tillage mechanism is installed on the front side of the above-mentioned frame, and the rotary tillage mechanism includes a rotary tillage shaft, and a rotary tillage blade is provided on the surface of the rotary tillage shaft. The rotary tillage shaft is rotatably connected to a rotary tillage shaft frame with a U-shaped structure. One end of the rotary tillage shaft extends out of the rotary tillage shaft frame and is fixedly connected to a driven pulley. The driven pulley is connected to a driving pulley through a transmission belt. The driving pulley is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the frame through a bearing seat and is fixedly connected to a motor shaft of a driving motor. The driving motor is installed on the frame; support columns are respectively provided near both sides of the upper end of the rotary tillage shaft frame, and the upper ends of the support columns are fixedly mounted on a wheel seat, and the wheel seat is fixedly connected to the front end surface of the frame.

[0012] Preferably, a fine soil mechanism is also installed in the middle of the above-mentioned frame, and the fine soil mechanism includes a fine soil mounting frame and support rods fixedly connected to the top ends of both sides of the fine soil mounting frame. The fine soil mounting frame is a frame structure, and the top ends of the support rods are bolted to the longitudinal beams on both sides of the frame. A plurality of fine soil beams are arranged at intervals in the fine soil mounting frame, and a plurality of fine soil nails are fixedly connected at intervals below the fine soil beams. The fine soil nails on adjacent fine soil beams are arranged in an alternating manner, and the lower part of each fine soil nail is pointed and embedded in the soil layer by 3-5 cm.

[0013] Preferably, the above-mentioned sowing mechanism is installed on the rear side of the frame, and a hand push handle is provided at the rear end of the frame located on the rear side of the sowing mechanism.

[0014] Compared with the prior art, the utility model has the beneficial effect that the furrow opener and the soil covering mechanism are respectively installed on the front and rear sides of the sowing mechanism through the connecting frame, and the furrow opener is used to form a sowing pit, which is conducive to deep burying of seeds during sowing, and the soil is turned up to both sides when furrowing. After sowing, during the movement of the sowing machine, the two soil covering plates of the soil covering device continuously gather the soil on both sides to the inside to achieve soil covering of the seeds. The sowing machine not only solves the problem of increasing labor intensity due to manual soil covering, but also the soil covering device and the furrow opener are installed on the front and rear sides of the sowing mechanism at the same time. The coordinated use is conducive to turning the soil on both sides of the seed pit into the seed pit to cover the seeds, improving the quality of soil covering of the seeds, ensuring the thickness of soil covering, preventing incomplete soil covering or soil covering floating on the surface, ensuring the normal development and production of seeds, and improving the emergence rate. In addition, the furrow opener and the soil covering device are installed on the sowing mechanism, and the vibration generated during operation is conducive to the seeds in the sowing mechanism falling, preventing blockage, and improving the success rate of sowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a side view schematic diagram of a seed drill;

[0016] Figure 2 It is a schematic diagram of the structure of the soil cover;

[0017] Figure 3 Arrange the front view for the seeding mechanism;

[0018] Figure 4 It is a schematic diagram of the connection between the sowing mechanism and the crossbeam;

[0019] Figure 5 A top view of the beam for installing the seeding mechanism;

[0020] Figure 6 It is the installation cross-sectional view of the discharging assembly;

[0021] Figure 7 This is a top view of the installation of the discharging assembly;

[0022] Figure 8 It is a schematic diagram of the structure of a trenching shovel;

[0023] Fig. 9 This is a bottom view of the fine soil structure;

[0024] Fig.10 This is a schematic diagram of the installation of the rotary tillage mechanism. DETAILED DESCRIPTION

[0025] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0026] Example 1

[0027] like Figure 1-10As shown, a seeder with a soil covering mechanism includes a frame 1, which is a rectangular frame. Four walking wheels 2 are installed under the frame 1, and a sowing mechanism 3 is installed on the frame 1. The sowing mechanism 3 is installed on the rear side of the frame 1. A plurality of sowing mechanisms 3 are arranged at intervals along the crossbeam 101 of the frame 1 to achieve multi-row simultaneous sowing and improve efficiency. The sowing mechanism 3 includes a storage chamber 301 and a discharge pipe 302. The storage chamber 301 is located above the discharge pipe 302 and is connected to the discharge pipe 302. A feed inlet is provided at the top of the storage chamber 301, and a discharge outlet is provided at the bottom of the discharge pipe 302. A discharge assembly 303 is provided in the discharge pipe 302 for adjusting the seed interval discharge. In the present embodiment, the discharge assembly 303 includes a rotating shaft 304 vertically rotatably connected to the discharge pipe 302, one end of the rotating shaft 304 extends out of the discharge pipe 302 to connect with the driving mechanism, and the driving mechanism is a discharge micro motor, which is fixedly connected to the outer wall of the discharge pipe 302 through a bracket, and a plurality of rotating blades 305 are evenly spaced circumferentially on the rotating shaft 304 located inside the discharge pipe 302, and each rotating blade 305 is The inner end is fixedly connected to the rotating shaft 304 along the axial direction of the rotating shaft 304, and a scraper 306 is provided at the outer end of the rotating blade 305. The scraper 306 maintains an arc surface consistent with the inner wall shape of the discharge pipe 302, and the scraper 306 is in active contact with the discharge pipe 302 (or maintains a gap of 0.5 mm), wherein the seed diameter is smaller than the distance from the scraper 306 to the rotating shaft 304 and larger than the distance from the side of the rotating blade 305 to the wall of the discharge pipe 302, and the rotating blade 305 and the scraper 306 cooperate with the structure to intercept the seeds in the discharge pipe 302, and the rotating shaft 304 is driven to rotate by the driving mechanism, which drives the rotating blade 305 to rotate, and the seeds are sent into the gap between the two rotating blades 305 at intervals. When the gap rotates to the bottom, the seeds automatically fall off, thereby realizing intermittent discharge. A slide groove 102 is provided in the middle part of the crossbeam 101 of the frame 1, and the discharge pipe 302 passes through the crossbeam 101 through the slide groove 102, and the storage chamber 301 is located above the crossbeam 101 and is slidably connected with the crossbeam 101. Fixed limit rods 4 are provided on both sides of the storage chamber 301, and a plurality of fixing holes are provided on the crossbeam 101 on both sides of the slide groove 102. Two limit plates 401 are provided at both ends of the fixed limit rod 4, and the two limit plates 401 are bolted to the crossbeam 101 on both sides of the slide groove 102 through the fixing holes. A step groove 104 is provided on the top of the slide groove 102, and an annular slide plate 307 is provided at the lower end of the storage chamber 301. After the annular slide plate 307 is embedded in the step groove 104, the limit plate 401 is used to fix the limit. The sowing spacing is adjusted by moving the storage chamber 301. After the position is determined, the fixed limit rod 4 is moved accordingly to fix the position of the storage chamber 301, so as to realize the rapid adjustment of the sowing spacing between the two rows, and the adjustment is convenient and quick, and the adaptability is wider.

[0028] Each of the above-mentioned sowing mechanisms 3 is provided with a connecting frame 5. Specifically, the connecting frame 5 is installed at the lower part of the discharge pipe 302. A connecting rod 1 501 and a connecting rod 2 502 are respectively vertically downwardly provided on the connecting frame 5 at the front and rear sides of the sowing mechanism 3. A furrow opener 6 is installed at the lower end of the connecting rod 1 501, and a soil coverer 7 is installed at the lower end of the connecting rod 2 502. The discharge port of the sowing mechanism 3 is located between the furrow opener 6 and the soil coverer 7, and the midlines of the furrow opener 6, the discharge port and the soil coverer 7 are located on the same straight line, ensuring that furrowing, sowing and soil covering are completed in sequence; the connecting frame 5 on which the furrow opener 6 and the soil coverer 7 are installed is arranged on the sowing mechanism 3. When the position of the sowing mechanism 3 is adjusted, the furrow opener 6 and the soil coverer 7 are adjusted at the same time to ensure that the positions of the three are always corresponding. In addition, the furrow opener 6 and the soil coverer 7 are installed on the sowing mechanism 3. The vibration generated during operation is conducive to the falling of seeds in the discharge pipe 302, prevents blockage, and improves the sowing success rate. The cover 701 is provided with two arc-shaped tile-shaped cover plates 702 symmetrically below the cover plate 701. The two cover plates 702 are arranged in an eight-shaped pattern. The opening between the two cover plates 702 is directly opposite to the furrow opener 6 and the front opening is larger than the rear opening. During the movement of the seeder, the furrow opener 6 is used to form a sowing pit, which is conducive to deep burying of seeds during sowing, and the soil is turned up to both sides during furrowing. After sowing, the two cover plates 702 of the cover 7 continuously gather the soil on both sides inward to cover the seeds, thereby solving the problem of increased labor intensity of manual covering. Since the cover 7 and the furrow opener 6 are installed on the front and rear sides of the sowing mechanism 3 at the same time, their coordinated use is conducive to turning the soil on both sides of the seed pit into the seed pit to cover the seeds, thereby improving the quality of seed covering, ensuring the thickness of the soil covering, preventing incomplete soil covering or soil covering floating on the surface, preventing seeds from being eaten by birds, ensuring normal development and production of seeds, and improving the emergence rate.

[0029] The rear end of the frame 1 is located at the rear side of the sowing mechanism 3 and is provided with a hand push handle 10. When a person holds the handle in hand, the actual conditions of furrowing, sowing and covering can be checked. When furrowing, sowing and covering are unqualified, timely remediation can be carried out.

[0030] The above-mentioned trenching device 6 includes a trenching mounting plate 601, the middle part of the top surface of the trenching mounting plate 601 is fixedly connected to the lower end of the connecting rod 501 vertically arranged at the front side of the bottom of the connecting frame 5 by screws (or welding), and the screw connection method is convenient for maintaining or replacing the trenching device 6; a trenching shovel 602 is arranged below the trenching mounting plate 601, and a V-shaped trenching part 603 is arranged at the bottom of the trenching shovel, which is conducive to turning the soil in the middle to both sides when trenching; wherein two connecting ear plates 604 are vertically symmetrically arranged on the bottom surface of the trenching mounting plate 601, and fixing plates 604 are arranged on both sides of the trenching shovel 602 corresponding to the connecting ear plates 604 5. Connecting holes 606 are correspondingly provided on the fixing plate 605 and the connecting ear plate 604. The trenching shovel 602 is fixedly connected between the two connecting ear plates 604 by means of bolts 607 passing through the connecting holes 606, and the lower end of the V-shaped trenching part 603 is tilted forward. The bolts and the connecting holes are fastened in a coordinated manner. After loosening the bolts and nuts, the tilting angle of the trenching shovel 602 is adjusted, which is conducive to trenching and turning over the soil. The corresponding angle adjustment is performed according to different soil types, thereby increasing the application range and reducing the cost. A gap is maintained between the upper end of the trenching shovel 602 and the bottom surface of the trenching mounting plate 601, and the gap ensures that the trenching shovel 602 can rotate around the bolts 607.

[0031] Furthermore, the middle part of the top surface of the above-mentioned covering mounting plate 701 is fixedly connected to the lower end of the connecting rod 2 502 vertically arranged on the rear side of the bottom of the connecting frame 5 by screws (or welding), and two mounting holes 703 are symmetrically provided on the covering mounting plate 701 on both sides of the connecting rod 2 502. A screw rod 704 is fixedly connected to the middle part of the top of the covering plate 702. After the top of the screw rod 704 passes through the mounting hole 703, two nuts are used to clamp the covering mounting plate 701 and tighten it. By changing the connection position of the screw rod 704 and the mounting hole, the opening angle and opening size of the two covering plates 702 are adjusted to adapt to the covering of seed pits of different sizes.

[0032] In order to improve the sowing efficiency, a rotary tillage mechanism 8 is installed on the front side of the frame 1, and the rotary tillage mechanism 8 includes a rotary tillage shaft 801. The surface of the rotary tillage shaft 801 is provided with a rotary tillage blade 802. The rotary tillage shaft 801 is rotatably connected to a rotary tillage shaft frame 803 with a U-shaped structure. One end of the rotating shaft of the rotary tillage shaft 801 extends out of the rotary tillage shaft frame 803 and is fixedly connected to a driven pulley 804. The driven pulley 804 is connected to a driving pulley 806 through a transmission belt 805. The driving pulley 806 is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the frame 1 through a bearing seat 807 and is fixedly connected to the motor shaft of a driving motor 808. The driving motor 808 is installed on the frame 1; support columns 809 are respectively provided near both sides of the upper end of the rotary tillage shaft frame 803, and the upper ends of the support columns 809 are fixedly installed on a wheel seat 810, and the wheel seat 810 is fixedly connected to the front end surface of the frame 1.

[0033] In order to level the soil and remove large pieces of soil and weeds in the land, a fine soil mechanism 9 is also installed in the middle of the frame 1, that is, between the sowing mechanism 3 and the rotary tillage mechanism 8. The fine soil mechanism 9 includes a fine soil mounting frame 901 and support rods 902 fixedly connected to the tops of both sides of the fine soil mounting frame 901. The fine soil mounting frame 901 is a frame structure, and the tops of the support rods 902 are bolted to the longitudinal beams 103 on both sides of the frame 1. A plurality of fine soil cross beams 903 are arranged at intervals in the fine soil mounting frame 901. The fine soil cross beams A plurality of fine soil nails 904 are fixedly connected at intervals below 903. The fine soil nails 904 on adjacent fine soil beams 903 are arranged in a staggered manner and the lower portion of each fine soil nail 904 is pointed. The fine soil nails 904 are embedded in the soil layer by 3-5 cm. The fine soil nails 904 are used to form a nail rake structure. The large pieces of soil are first raked and the weeds are pulled out at the front end of the furrow opener 6 to facilitate subsequent furrowing. There are gaps between the fine soil nails 904 to facilitate the weeds to wrap around the top of the beam from the gaps, thereby improving the removal rate of weeds and crop roots.

[0034] The above-mentioned embodiments are only for describing the preferred implementation of the utility model, and are not intended to limit the scope of the utility model. Without departing from the design spirit and principle of the utility model, various modifications and improvements made by those skilled in the art to the technical solution of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A seed drill with a soil covering mechanism, comprising a frame (1), a running wheel (2) being mounted below the frame (1), and a seeding mechanism (3) being mounted on the frame (1), characterized in that: The sowing mechanism (3) is mounted on the rear side of the frame (1), and a plurality of sowing mechanisms (3) are arranged at intervals along the crossbeam (101) of the frame (1). Each sowing mechanism (3) is provided with a connecting frame (5), and a furrow opener (6) is installed at the front side of the sowing mechanism (3) below the connecting frame (5), and a soil cover (7) is installed at the rear side. The soil cover (7) comprises a soil cover mounting plate (701), and the soil cover mounting plate (701) is screw-connected to the connecting frame (5). Two arc-shaped tile-shaped soil cover plates (702) are symmetrically arranged below the soil cover mounting plate (701), and the two soil cover plates (702) are arranged in an "eight" shape. The opening between the two soil cover plates (702) faces the furrow opener (6), and the front opening is larger than the rear opening. The discharge port of the sowing mechanism (3) is located between the furrow opener (6) and the soil cover (7), and the midlines of the furrow opener (6), the discharge port and the soil cover (7) are located on the same straight line. A fine soil mechanism (9) is also installed in the middle of the frame (1), and the fine soil mechanism (9) comprises a fine soil mounting frame (901) and support rods (902) fixedly connected to the top ends of both sides of the fine soil mounting frame (901), the fine soil mounting frame (901) is a frame structure, the top ends of the support rods (902) are bolted to the longitudinal beams (103) on both sides of the frame (1), a plurality of fine soil cross beams (903) are arranged at intervals in the fine soil mounting frame (901), a plurality of fine soil nails (904) are fixedly connected at intervals below the fine soil cross beams (903), the fine soil nails (904) on adjacent fine soil cross beams (903) are arranged in a staggered manner, and the lower portion of each fine soil nail (904) is pointed and embedded in the soil layer by 3-5 cm; The rear end of the frame (1) is located at the rear side of the sowing mechanism (3) and is provided with a hand push handle (10).

2. A seeder with a soil covering mechanism according to claim 1, characterized in that: The middle portion of the top surface of the soil covering installation plate (701) is fixedly connected to the lower end of the second connecting rod (502) vertically arranged at the rear side of the bottom of the connecting frame (5); two mounting holes (703) are symmetrically provided on both sides of the second connecting rod (502) on the soil covering installation plate (701); a screw rod (704) is fixedly connected to the middle portion of the top of the soil covering plate (702); and the top of the screw rod (704) passes through the mounting hole (703) and is then clamped and fastened to the soil covering installation plate (701) by two nuts.

3. A seeder with a soil covering mechanism according to claim 1, characterized in that: The trenching device (6) comprises a trenching mounting plate (601), the middle portion of the top surface of the trenching mounting plate (601) being fixedly connected to the lower end of a connecting rod (501) vertically arranged at the front side of the bottom of the connecting frame (5), a trenching shovel (602) being arranged below the trenching mounting plate (601), and a V-shaped trenching portion (603) being arranged at the bottom of the trenching shovel (602).

4. A seeder with a soil covering mechanism according to claim 3, characterized in that: The bottom surface of the trenching mounting plate (601) is provided with two connecting ear plates (604) in a vertically symmetrical manner. A fixing plate (605) is provided on both sides of the trenching shovel (602) corresponding to the connecting ear plates (604). Connecting holes (606) are provided on the fixing plate (605) and the connecting ear plates (604) respectively. The trenching shovel (602) is fixedly connected between the two connecting ear plates (604) by bolts (607) passing through the connecting holes (606), and the lower end of the V-shaped trenching portion (603) is tilted forward.

5. A seeder with a soil covering mechanism according to claim 1, characterized in that: The sowing mechanism (3) comprises a material storage chamber (301) and a discharge pipe (302); the material storage chamber (301) is located above the discharge pipe (302) and is in communication with the discharge pipe (302); a material inlet is provided at the top of the material storage chamber (301); a material outlet is provided at the bottom of the discharge pipe (302); a material outlet assembly (303) is provided in the discharge pipe (302) for adjusting the seed interval discharge; a chute (102) is provided in the middle of the crossbeam (101) of the frame (1); the discharge pipe (302) passes through the crossbeam (101) through the chute (102); and the material storage chamber (301) is located above the crossbeam (101) and is in communication with the crossbeam (101). A sliding connection is provided, wherein fixed limiting rods (4) are provided on both sides of the material storage chamber (301), a plurality of fixing holes are provided at intervals on the cross beams (101) on both sides of the slide groove (102), two limiting plates (401) are provided at both ends of the fixed limiting rod (4), the two limiting plates (401) are bolted to the cross beams (101) on both sides of the slide groove (102) through the fixing holes, a step groove (104) is provided on the top of the slide groove (102), an annular slide plate (307) is provided at the lower end of the material storage chamber (301), and the annular slide plate (307) is fixed and limited by the limiting plates (401) after being embedded in the step groove (104), and the connecting frame (5) is provided at the lower part of the discharge pipe (302).

6. A seeder with a soil covering mechanism according to claim 5, characterized in that: The discharge assembly (303) comprises a rotating shaft (304) which is vertically rotatably connected to the discharge pipe (302); one end of the rotating shaft (304) extends out of the discharge pipe (302) to connect to a driving mechanism; the driving mechanism is a discharge micro motor; the discharge micro motor is fixedly connected to the outer wall of the discharge pipe (302) via a bracket; a plurality of rotating blades (305) are evenly spaced in the circumferential direction at the inner end of the rotating shaft (304); a scraper (306) is provided at the end of the rotating blade (305); the scraper (306) is in active contact with the discharge pipe (302); the rotating blade (305) and the scraper (306) cooperate to intercept seeds in the discharge pipe (302).

7. A seed drill with a soil covering mechanism according to claim 1, characterized in that: A rotary tillage mechanism (8) is installed on the front side of the frame (1), the rotary tillage mechanism (8) comprising a rotary tillage shaft (801), a rotary tillage blade (802) being provided on the surface of the rotary tillage shaft (801), the rotary tillage shaft (801) being rotatably connected to a rotary tillage shaft frame (803) of a U-shaped structure, one end of the rotary tillage shaft (801) extending out of the rotary tillage shaft frame (803) and fixedly connected to a driven pulley (804), the driven pulley (804) being connected to the driving pulley (804) via a transmission belt (805). 06), a driving pulley (806) is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the frame (1) through a bearing seat (807) and is fixedly connected to the motor shaft of a driving motor (808), and the driving motor (808) is installed on the frame (1); support columns (809) are respectively provided near both sides of the upper end of the rotary tillage shaft frame (803), and the upper ends of the support columns (809) are fixedly installed on a wheel seat (810), and the wheel seat (810) is fixedly connected to the front end surface of the frame (1).

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