A drill capable of integrating ditching and soil covering

Abstract

The present invention belongs to the technical field of agricultural machinery, and specifically discloses a trenching machine capable of trenching and soil covering, including a support frame, a mounting frame is provided on the upper wall of the support frame, a seed box is provided on the mounting frame, walking wheels are provided at both ends of the support frame, a support assembly is provided at the front end of the support frame, an adjustment assembly is provided on the support frame and the support assembly, an automatic uniform sowing assembly is provided on the support assembly, an automatic medicine mixing assembly is provided on the automatic uniform sowing assembly, a trenching assembly is provided on the support assembly, the automatic uniform sowing assembly corresponds to the trenching assembly one by one, and a soil covering and compacting assembly is provided on the support assembly. The present invention utilizes a ratchet mechanism of an incomplete gear to achieve uniform seed sowing, and in the process automatically achieves full mixing of seeds and medicine liquid to avoid damage to the seeds.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a drill seeding machine capable of integrating ditching and soil covering. Background Art

[0002] When the drill is in operation, the traveling wheel drives the seed wheel to rotate, and the seeds are discharged from the seed cup in the seed box into the seed tube according to the required sowing amount, and fall into the opened groove through the furrow opener, and then the seeds are covered and compacted by the soil covering and pressing device.

[0003] Seeds need to be mixed with drugs before sowing. Generally, the drugs and seeds are mixed together mechanically and then added to the seed box of the drill. This mixing method is too inefficient and the uniformity of the mixture of seeds and drugs cannot be guaranteed. More importantly, mechanical mixing can easily cause damage to the seeds, thereby affecting the germination rate.

[0004] Therefore, a seed drill capable of both ditching and soil covering is needed to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an integrated trenching and soil covering drill, which utilizes a ratchet mechanism of incomplete gears to achieve uniform seed sowing and automatically achieves sufficient mixing of seeds and liquid medicine in the process to avoid damage to the seeds.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an integrated trenching and soil-covering drill, comprising a supporting frame, an upper wall of the supporting frame is provided with a mounting frame, a seed box is provided on the mounting frame, walking wheels are provided at both ends of the supporting frame, a supporting assembly is provided at the front end of the supporting frame, an adjustment assembly is provided on the supporting frame and the supporting assembly, an automatic uniform sowing assembly is provided on the supporting assembly, an automatic medicine mixing assembly is provided on the automatic uniform sowing assembly, a trenching assembly is provided on the supporting assembly, the automatic uniform sowing assembly corresponds to the trenching assembly one-to-one, and a soil covering and compacting assembly is provided on the supporting assembly.

[0007] Furthermore, the support assembly includes a fixed plate, a linkage shaft and an adjustment arm, the fixed plate is symmetrically arranged on the side wall of the support frame, the linkage shaft is arranged between the inner side walls of the fixed plate, and the adjustment arm array is arranged on the linkage shaft.

[0008] Furthermore, the automatic uniform sowing component includes a sowing rotating disk, a fixed cover, a wing plate, a ventilation cavity, a linkage gear, a transmission shaft, a transmission gear, an inner gear ring, an incomplete gear, a control shaft and a control motor, the wing plate is symmetrically arranged at the end of the adjusting arm, the fixed cover is an arc groove type, one end of the fixed cover is arranged on the front end upper wall of the adjusting arm, the ventilation cavity is an annular cavity structure, the ventilation cavity is fixedly arranged between the inner side walls of the wing plate, the sowing rotating disk is annular, the front end of the adjusting arm is arc-shaped, the sowing rotating disk is rotatably arranged between the fixed cover and the ventilation cavity, and the adjusting arm Cooperating with the front end of the sowing rotating disk, the inner gear ring is arranged on the end surface of the sowing rotating disk, the transmission shaft is penetrated and arranged on the wing plate, the transmission gear is arranged at one end of the transmission shaft, the transmission gear is meshed with the inner gear ring, the linkage gear is arranged at the other end of the transmission shaft, the control shaft penetrates all the ventilation cavities and wing plates, the incomplete gear is arranged on the control shaft, the incomplete gear is arranged on the outside of the wing plate, the incomplete gear is meshed with the linkage gear, the control motor is arranged on the outer side wall of the outermost wing plate, the control motor is connected to the control shaft, and the outer wall of the ventilation cavity is penetrated with an air outlet.

[0009] Furthermore, the automatic drug mixing component includes a drug passing tube, a drug containing tube, a drug spraying tube, a restoring spring, a piston, a one-way valve 1 and a two-way valve. A drug mixing hole is penetrated through the arc-shaped outer wall of the fixed cover. The drug passing tube is a tube with an opening at the lower end. The drug passing tube is arranged at the drug mixing hole of the arc-shaped outer wall of the fixed cover. The upper end of the drug spraying tube is arranged on the inner bottom wall of the drug passing tube. The piston is slidably arranged in the drug passing tube. The piston is slidably arranged on the drug spraying tube. The restoring spring is sleeved on the drug spraying tube. The restoring spring is arranged between the inner bottom wall of the drug passing tube and the piston. The drug containing tube is arranged at the upper end of the drug passing tube. Each of the drug passing tubes is connected to the drug containing tube through a one-way valve 1. A two-way valve is arranged on the upper outer wall of the drug spraying tube. The outer wall of the lower end of the drug spraying tube is evenly provided with drug spraying holes. When the restoring spring is in a normal state, the drug spraying hole is located on the lower side of the piston. A drug adding port is arranged on the upper wall of the drug containing tube.

[0010] Furthermore, a conveying channel is provided inside the adjusting arm, and a docking hole array is provided on the outer wall of the sowing rotating disk. The docking holes are blind holes, and a vent hole is penetrated through the bottom wall of the docking holes. A supporting net is provided inside the docking holes. When the sowing rotating disk rotates, the docking holes on the sowing rotating disk are aligned with the conveying channel in sequence.

[0011] Furthermore, the soil covering and compacting assembly includes a connecting side plate, a mounting shaft, a compacting wheel, a spacer plate and a guide plate, the connecting side plate is symmetrically rotatably arranged on the outer side wall of the fixed plate, the mounting shaft is arranged on the inner side wall of the end of the connecting side plate, the compacting wheel array is arranged on the mounting shaft, the compacting wheels correspond to the adjusting arms one by one, the spacer plate is arranged on the mounting shaft, the spacer plate is arranged between the compacting wheels, the guide plate is arranged at the end of the spacer plate, the guide plate is inclined toward one side of the compacting wheel, and the distance between the ends of adjacent guide plates is less than the thickness of the compacting wheel.

[0012] Furthermore, the adjustment assembly includes an adjustment gear, an adjustment rack, a hydraulic adjustment rod and a mounting plate, the mounting plate is arranged on the lower wall of the support frame, the hydraulic adjustment rod is arranged on the mounting plate, the adjustment gear is arranged on the hydraulic adjustment rod, the adjustment gear is arranged on the linkage shaft, the adjustment gear is arranged between the adjustment arms, and the adjustment gear is meshed with the adjustment rack.

[0013] Furthermore, the trenching assembly includes a telescopic rod and a trenching shovel, the telescopic rod is arranged on the lower wall of the adjusting arm, and the trenching shovel is arranged on the lower end of the telescopic rod.

[0014] Furthermore, the bottom of the seed box is connected to the conveying channel in each of the regulating arms through a connecting hose.

[0015] Furthermore, each of the ventilation cavities is connected in sequence via a connecting air pipe.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows:

[0017] 1. When the incomplete gear is meshed with the linkage gear, the linkage gear drives the transmission shaft to rotate, the transmission shaft drives the transmission gear to rotate, the transmission gear is meshed with the inner gear ring, and the inner gear ring drives the seeding rotating disk to rotate. When the conveying channel in the adjustment arm is aligned with the docking hole, the incomplete gear is no longer meshed with the linkage gear, the linkage gear stops rotating, the conveying channel and the docking hole remain aligned, and the seeds in the seed box enter the conveying channel through the connecting hose, and then enter the docking hole to complete uniform seeding;

[0018] 2. When the incomplete gear continues to rotate, the incomplete gear meshes with the linkage gear again, and the linkage gear drives the transmission shaft, the transmission gear, and the inner gear ring to rotate, so that the sowing rotating disk rotates an angle. At this time, the docking hole with seeds is aligned with the medicine mixing hole on the fixed cover, and the gas enters the docking hole from the ventilation cavity through the air outlet and the ventilation hole. The gas blows the seeds in the docking hole upward, and then the gas enters the medicine pipe. The gas pushes the piston upward, and the piston pushes the liquid medicine in the medicine pipe from the second one-way valve into the medicine spraying pipe. The liquid medicine is sprayed from the medicine spraying hole to spray the blown seeds, so that the liquid medicine is evenly attached to the seeds, and the seeds are evenly mixed with medicine;

[0019] 3. When the incomplete gear meshes with the linkage gear, the inner gear ring drives the sowing rotary disk to rotate, and the air outlet hole on the ventilation cavity is staggered with the air outlet hole on the sowing rotary disk. At this time, no gas enters the docking hole and the medicine pipe. The restoring spring pushes the piston downward, and the medicine liquid in the medicine pipe is sucked into the medicine pipe through the one-way valve, and the addition of medicine liquid is automatically completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a drill capable of trenching and soil covering provided by the present invention;

[0021] Figure 2 for Figure 1 A top view of

[0022] Figure 3 for Figure 1 Left view of

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the automatic uniform sowing component and the automatic medicine mixing component;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the automatic uniform seeding component;

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the adjusting arm, wing plate, fixed cover and medicine passage pipe;

[0026] Figure 7 It is a schematic diagram of the internal structure of the regulating arm, wing plate, fixed cover and medicine passage;

[0027] Figure 8 for Figure 7 Enlarged view of part A;

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of a sowing rotating disk;

[0029] Fig.10 It is a schematic diagram of the internal structure of the sowing rotating disk;

[0030] Fig.11 Schematic diagram of the internal structure of the ventilation cavity.

[0031] Among them, 1. support frame, 2. mounting frame, 3. seed box, 4. walking wheel, 5. support assembly, 6. adjustment assembly, 7. automatic uniform sowing assembly, 8. automatic medicine mixing assembly, 9. furrowing assembly, 10. soil covering and compacting assembly, 11. fixed plate, 12. linkage shaft, 13. adjustment arm, 14. sowing rotating disk, 15. fixed cover, 16. wing plate, 17. ventilation cavity, 18. linkage gear, 19. transmission shaft, 20. transmission gear, 21. inner ring gear, 22. incomplete gear, 23. control shaft, 24. control motor, 25. medicine pipe, 26. Medicine pipe, 27, medicine spray pipe, 28, return spring, 29, piston, 30, one-way valve 1, 31, one-way valve 2, 32, medicine mixing hole, 33, medicine spray hole, 34, medicine adding port, 35, conveying channel, 36, docking hole, 37, vent hole, 38, support net, 39, connecting side plate, 40, mounting shaft, 41, compacting wheel, 42, spacer plate, 43, guide plate, 44, adjusting gear, 45, adjusting rack, 46, hydraulic adjusting rod, 47, mounting plate, 48, telescopic rod, 49, trenching shovel, 50, connecting hose, 51, connecting air pipe, 52, air outlet.

[0032] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] like Figure 1As shown, the present invention proposes a furrowing and soil-covering integrated drill, comprising a supporting frame 1, an upper wall of the supporting frame 1 is provided with a mounting frame 2, the mounting frame 2 is provided with a seed box 3, both ends of the supporting frame 1 are provided with walking wheels 4, the front end of the supporting frame 1 is provided with a supporting assembly 5, the supporting frame 1 and the supporting assembly 5 are provided with an adjusting assembly 6, the supporting assembly 5 is provided with an automatic uniform sowing assembly 7, the automatic uniform sowing assembly 7 is provided with an automatic medicine mixing assembly 8, the supporting assembly 5 is provided with a furrowing assembly 9, the automatic uniform sowing assembly 7 corresponds to the furrowing assembly 9 one by one, and the supporting assembly 5 is provided with a soil covering and compacting assembly 10.

[0036] like Figure 1 , Figure 2 As shown, the support assembly 5 includes a fixed plate 11, a linkage shaft 12 and an adjustment arm 13. The fixed plate 11 is symmetrically arranged on the side wall of the support frame 1, the linkage shaft 12 is arranged between the inner side walls of the fixed plate 11, and the adjustment arm 13 is arranged in an array on the linkage shaft 12.

[0037] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 , Fig.10 , Fig.11 As shown, the automatic uniform sowing component 7 includes a sowing rotating disk 14, a fixed cover 15, a wing plate 16, a ventilation cavity 17, a linkage gear 18, a transmission shaft 19, a transmission gear 20, an inner ring gear 21, an incomplete gear 22, a control shaft 23 and a control motor 24, the wing plate 16 is symmetrically arranged at the end of the adjusting arm 13, the fixed cover 15 is an arc groove type, one end of the fixed cover 15 is arranged on the front end upper wall of the adjusting arm 13, the ventilation cavity 17 is an annular cavity structure, the ventilation cavity 17 is fixedly arranged between the inner side walls of the wing plate 16, the sowing rotating disk 14 is annular, the front end of the adjusting arm 13 is arc-shaped, the sowing rotating disk 14 is rotatably arranged between the fixed cover 15 and the ventilation cavity 17, the adjusting arm 13 and The front end of the sowing rotating disk 14 is matched, the inner gear ring 21 is arranged on the end face of the sowing rotating disk 14, the transmission shaft 19 is penetrated and arranged on the wing plate 16, the transmission gear 20 is arranged at one end of the transmission shaft 19, the transmission gear 20 is meshed with the inner gear ring 21, the linkage gear 18 is arranged at the other end of the transmission shaft 19, the control shaft 23 passes through all the ventilation cavities 17 and the wing plates 16, the incomplete gear 22 is arranged on the control shaft 23, the incomplete gear 22 is arranged on the outside of the wing plate 16, the incomplete gear 22 is meshed with the linkage gear 18, the control motor 24 is arranged on the outer side wall of the outermost wing plate 16, the control motor 24 is connected to the control shaft 23, and the outer wall of the ventilation cavity 17 is penetrated with an air outlet 52.

[0038] like Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, the automatic drug mixing component 8 includes a drug passing pipe 25, a drug containing pipe 26, a drug spraying pipe 27, a restoring spring 28, a piston 29, a one-way valve 1 30 and a one-way valve 2 31. The curved outer wall of the fixed cover 15 is penetrated with a drug mixing hole 32. The drug passing pipe 25 is a tube with an opening at the lower end. The drug passing pipe 25 is arranged at the drug mixing hole 32 of the curved outer wall of the fixed cover 15. The upper end of the drug spraying pipe 27 is arranged on the inner bottom wall of the drug passing pipe 25. The piston 29 is slidably arranged in the drug passing pipe 25. The piston 29 is slidably arranged on the drug spraying pipe 27. The restoring spring 28 is sleeved on the medicine spraying pipe 27, and the restoring spring 28 is arranged between the inner bottom wall of the medicine passing pipe 25 and the piston 29. The medicine containing pipe 26 is arranged at the upper end of the medicine passing pipe 25. Each of the medicine passing pipes 25 is connected with the medicine containing pipe 26 through a one-way valve 1 30. A one-way valve 2 31 is arranged on the upper outer wall of the medicine spraying pipe 27. The outer wall of the lower end of the medicine spraying pipe 27 is evenly provided with medicine spraying holes 33. When the restoring spring 28 is in a normal state, the medicine spraying holes 33 are located on the lower side of the piston 29. The upper wall of the medicine containing pipe 26 is provided with a medicine adding port 34.

[0039] like Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 , Fig.10 As shown, a conveying channel 35 is provided inside the adjusting arm 13, and a docking hole 36 is provided in an array on the outer wall of the sowing rotary disk 14. The docking holes 36 are blind holes, and a vent hole 37 is penetrated through the bottom wall of the docking holes 36. A supporting net 38 is provided inside the docking holes 36. When the sowing rotary disk 14 rotates, the docking holes 36 on the sowing rotary disk 14 are aligned with the conveying channel 35 in sequence.

[0040] like Figure 1 , Figure 2 As shown, the soil covering and compacting assembly 10 includes a connecting side plate 39, a mounting shaft 40, a compacting wheel 41, a spacer plate 42 and a guide plate 43. The connecting side plate 39 is symmetrically rotated on the outer side wall of the fixed plate 11, the mounting shaft 40 is arranged on the inner side wall of the end of the connecting side plate 39, the compacting wheels 41 are arranged in an array on the mounting shaft 40, and the compacting wheels 41 correspond to the adjusting arms 13 one by one. The spacer plate 42 is arranged on the mounting shaft 40, the spacer plate 42 is arranged between the compacting wheels 41, and the guide plate 43 is arranged at the end of the spacer plate 42. The guide plate 43 is inclined toward one side of the compacting wheel 41, and the distance between the ends of adjacent guide plates 43 is less than the thickness of the compacting wheel 41.

[0041] like Figure 1 , Figure 3 As shown, the adjustment assembly 6 includes an adjustment gear 44, an adjustment rack 45, a hydraulic adjustment rod 46 and a mounting plate 47, wherein the mounting plate 47 is arranged on the lower wall of the support frame 1, the hydraulic adjustment rod 46 is arranged on the mounting plate 47, the adjustment gear 44 is arranged on the hydraulic adjustment rod 46, the adjustment gear 44 is arranged on the linkage shaft 12, the adjustment gear 44 is arranged between the adjustment arms 13, and the adjustment gear 44 is meshed with the adjustment rack 45.

[0042] like Figure 1 , Figure 3 As shown, the trenching assembly 9 includes a telescopic rod 48 and a trenching shovel 49 . The telescopic rod 48 is arranged on the lower wall of the adjustment arm 13 , and the trenching shovel 49 is arranged at the lower end of the telescopic rod 48 .

[0043] like Figure 1 , Figure 3 , Figure 4 As shown, the bottom of the seed box 3 is connected to the conveying channel 35 in each of the adjusting arms 13 via a connecting hose 50 .

[0044] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 As shown, each of the ventilation cavities 17 is connected in sequence through the connecting air pipe 51, and the ventilation cavity 17 is connected to an external air pump through the connecting air pipe 51. During the sowing process, the gas in the air pump enters the ventilation cavity 17.

[0045] When in use, the support frame 1 is connected to the tractor by using the connecting mechanism, the hydraulic adjustment rod 46 is adjusted, the hydraulic adjustment rod 46 is shortened, the hydraulic adjustment rod 46 drives the adjustment rack 45 to move, the adjustment rack 45 drives the adjustment gear 44 to rotate clockwise, the adjustment gear 44 drives the linkage shaft 12 to rotate clockwise, the linkage shaft 12 drives the adjustment arm 13 to rotate clockwise, so that the sowing rotating disk 14 is at a suitable distance from the ground, and then the extension of the telescopic rod 48 is adjusted, the telescopic rod 48 drives the trenching shovel 49 to enter the land, the tractor drives the support frame 1 to move forward, the trenching shovel 49 digs trenches on the land, and the control motor 2 is turned on. 4. The control motor 24 drives the control shaft 23 to rotate, and the control shaft 23 drives the incomplete gear 22 to rotate. When the incomplete gear 22 is meshed with the linkage gear 18, the linkage gear 18 drives the transmission shaft 19 to rotate, and the transmission shaft 19 drives the transmission gear 20 to rotate. The transmission gear 20 is meshed with the inner gear ring 21, and the inner gear ring 21 drives the sowing rotating disk 14 to rotate. When the conveying channel 35 in the adjustment arm 13 is aligned with the docking hole 36, the seeds in the seed box 3 enter the conveying channel 35 through the connecting hose 50, and then enter the docking hole 36. At this time, the incomplete gear 22 is no longer meshed with the linkage gear 18, and the linkage gear 18 is engaged. The gear 18 stops rotating, and the conveying channel 35 is aligned with the docking hole 36. When the control motor 24 drives the control shaft 23 to continue rotating, the control shaft 23 drives the incomplete gear 22 to continue rotating, and the incomplete gear 22 meshes with the linkage gear 18 again. The linkage gear 18 drives the transmission shaft 19 to rotate again, and the transmission shaft 19 drives the transmission gear 20 to rotate, and the transmission gear 20 drives the inner gear ring 21 to rotate, and the inner gear ring 21 drives the sowing rotating disk 14 to rotate an angle. At this time, the docking hole 36 with seeds is aligned with the mixing hole 32 on the fixed cover 15, and the gas passes from the ventilation cavity 17 through the air outlet 52 and the air vent 37. The gas enters the docking hole 36, and the gas blows the seeds in the docking hole 36 upward. Then, the gas enters the medicine pipe 25, and the gas pushes the piston 29 upward. The piston 29 pushes the liquid medicine in the medicine pipe 25 from the one-way valve 31 into the medicine spraying pipe 27. The liquid medicine is sprayed from the medicine spraying hole 33, and the blown seeds are sprayed with medicine, so that the liquid medicine is evenly attached to the seeds. The sowing rotating disk 14 rotates intermittently. When the docking hole 36 with the spraying seeds is separated from the fixed cover 15, the seeds slide out of the docking hole 36 and fall into the groove. The guide plate 43 pushes the soil turned up by the ditching into the groove, and the compacting wheel 41 compacts the soil.

[0046] When the incomplete gear 22 is meshed with the linkage gear 18, the linkage gear 18 drives the transmission shaft 19 to rotate, the transmission shaft 19 drives the transmission gear 20 to rotate, the transmission gear 20 drives the inner gear ring 21 to rotate, the inner gear ring 21 drives the sowing rotary disk 14 to rotate, the air outlet 52 on the ventilation cavity 17 is staggered with the air outlet 37 on the sowing rotary disk 14, and no gas enters the docking hole 36 and the medicine tube 25 at this time, the restoring spring 28 pushes the piston 29 downward, and the medicine liquid in the medicine tube 26 is sucked into the medicine tube 25 through the one-way valve 30.

[0047] Repeat the above steps to achieve seed mixing and uniform sowing.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0050] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A seed drill capable of trenching and soil covering, comprising a support frame (1), characterized in that: The upper wall of the support frame (1) is provided with a mounting frame (2), the mounting frame (2) is provided with a seed box (3), both ends of the support frame (1) are provided with walking wheels (4), the front end of the support frame (1) is provided with a support assembly (5), the support frame (1) and the support assembly (5) are provided with an adjustment assembly (6), the support assembly (5) is provided with an automatic uniform sowing assembly (7), the automatic uniform sowing assembly (7) is provided with an automatic medicine mixing assembly (8), the support assembly (5) is provided with a furrowing assembly (9), the automatic uniform sowing assembly (7) corresponds to the furrowing assembly (9) in a one-to-one manner, and the support assembly (5) is provided with a soil covering and compacting assembly (10); The support assembly (5) comprises a fixed plate (11), a linkage shaft (12) and an adjustment arm (13); the fixed plate (11) is symmetrically arranged on the side wall of the support frame (1); the linkage shaft (12) is arranged between the inner side walls of the fixed plate (11); and the adjustment arm (13) is arranged in an array on the linkage shaft (12); The automatic uniform seeding assembly (7) comprises a seeding rotating disk (14), a fixed cover (15), a wing plate (16), a ventilation cavity (17), a linkage gear (18), a transmission shaft (19), a transmission gear (20), an inner gear ring (21), an incomplete gear (22), a control shaft (23) and a control motor (24); the wing plate (16) is symmetrically arranged at the end of the adjustment arm (13); the fixed cover (15) is an arc groove type; one end of the fixed cover (15) is arranged on the front end upper wall of the adjustment arm (13); the ventilation cavity (17) is an annular cavity structure; the ventilation cavity (17) is fixedly arranged between the inner side walls of the wing plate (16); the seeding rotating disk (14) is annular; the front end of the adjustment arm (13) is arc-shaped; the seeding rotating disk (14) is rotatably arranged between the fixed cover (15) and the ventilation cavity (17); the adjustment arm (13) and the seeding rotating disk (14) are connected to the fixed cover (15) and the ventilation cavity (17); The front end of the rotating disk (14) is matched, the inner gear ring (21) is arranged on the end surface of the sowing rotating disk (14), the transmission shaft (19) is arranged on the wing plate (16), the transmission gear (20) is arranged on one end of the transmission shaft (19), the transmission gear (20) is meshed with the inner gear ring (21), the linkage gear (18) is arranged on the other end of the transmission shaft (19), the control shaft (23) passes through all the ventilation cavities (17) and the wing plate (16), the incomplete gear (22) is arranged on the control shaft (23), the incomplete gear (22) is arranged on the outside of the wing plate (16), the incomplete gear (22) is meshed with the linkage gear (18), the control motor (24) is arranged on the outer side wall of the outermost wing plate (16), the control motor (24) is connected to the control shaft (23), and the outer wall of the ventilation cavity (17) is penetrated by an air outlet hole (52); The automatic drug mixing assembly (8) comprises a drug passing pipe (25), a drug containing pipe (26), a drug spraying pipe (27), a return spring (28), a piston (29), a one-way valve (30) and a one-way valve (31). The curved outer wall of the fixed cover (15) is penetrated by a drug mixing hole (32). The drug passing pipe (25) is a tube with an open lower end. The drug passing pipe (25) is arranged at the drug mixing hole (32) of the curved outer wall of the fixed cover (15). The upper end of the drug spraying pipe (27) is arranged on the inner bottom wall of the drug passing pipe (25). The piston (29) is slidably arranged in the drug passing pipe (25). The piston (29) is slidably arranged on the drug spraying pipe (27). The return spring (28) is sleeved on the medicine spraying pipe (27), and the return spring (28) is arranged between the inner bottom wall of the medicine passing pipe (25) and the piston (29). The medicine containing pipe (26) is arranged at the upper end of the medicine passing pipe (25). Each medicine passing pipe (25) is connected to the medicine containing pipe (26) through a one-way valve (30). A one-way valve (31) is arranged on the upper outer wall of the medicine spraying pipe (27). Medicine spraying holes (33) are evenly arranged on the outer wall of the lower end of the medicine spraying pipe (27). When the return spring (28) is in a normal state, the medicine spraying holes (33) are located on the lower side of the piston (29). The upper wall of the medicine containing pipe (26) is provided with a medicine adding port (34). The soil covering and compacting assembly (10) comprises a connecting side plate (39), a mounting shaft (40), a compacting wheel (41), a spacer plate (42) and a guide plate (43); the connecting side plate (39) is symmetrically arranged on the outer side wall of the fixing plate (11); the mounting shaft (40) is arranged on the inner side wall of the end of the connecting side plate (39); the compacting wheels (41) are arranged in an array on the mounting shaft (40); the compacting wheels (41) correspond to the adjustment arms (13) one by one; the spacer plate (42) is arranged on the mounting shaft (40); the spacer plate (42) is arranged between the compacting wheels (41); the guide plate (43) is arranged at the end of the spacer plate (42); the guide plate (43) is inclined toward one side of the compacting wheel (41); and the distance between the ends of adjacent guide plates (43) is less than the thickness of the compacting wheel (41).

2. The drill seed drill capable of trenching and soil covering according to claim 1, characterized in that: The regulating arm (13) is provided with a conveying channel (35) inside, and the outer wall of the sowing rotary disk (14) is provided with a docking hole (36) in array, the docking hole (36) being a blind hole, and a vent hole (37) penetrating through the bottom wall of the docking hole (36), and a supporting net (38) is provided inside the docking hole (36), and when the sowing rotary disk (14) rotates, the docking holes (36) on the sowing rotary disk (14) are aligned with the conveying channel (35) in sequence.

3. The drill seed drill capable of trenching and soil covering according to claim 2, characterized in that: The adjustment assembly (6) comprises an adjustment gear (44), an adjustment rack (45), a hydraulic adjustment rod (46) and a mounting plate (47); the mounting plate (47) is arranged on the lower wall of the support frame (1); the hydraulic adjustment rod (46) is arranged on the mounting plate (47); the adjustment gear (44) is arranged on the hydraulic adjustment rod (46); the adjustment gear (44) is arranged on the linkage shaft (12); the adjustment gear (44) is arranged between the adjustment arms (13); and the adjustment gear (44) is meshed with the adjustment rack (45).

4. The drill seed drill capable of trenching and soil covering according to claim 3, characterized in that: The trenching assembly (9) comprises a telescopic rod (48) and a trenching shovel (49); the telescopic rod (48) is arranged on the lower wall of the adjustment arm (13); and the trenching shovel (49) is arranged at the lower end of the telescopic rod (48).

5. The drill seed drill capable of trenching and soil covering according to claim 4, characterized in that: The bottom of the seed box (3) is connected to the delivery channel (35) in each regulating arm (13) via a connecting hose (50).

6. The drill seed drill capable of trenching and soil covering according to claim 5, characterized in that: Each of the ventilation cavities (17) is connected in sequence via a connecting air pipe (51).

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