Alfalfa seed planting device

Abstract

The invention is applicable to the technical field of sowing, and provides an alfalfa seed planting device, comprising a planting frame; a lifting part is symmetrically screwed on a bidirectional screw rod; a plurality of seed taking parts that are slidably matched with corresponding seed storage tanks are fixed on one lifting part; a plurality of seed delivery parts that are slidably matched with corresponding insertion tubes are fixed on the other lifting part; a sliding part that is slidably provided at the bottom of the insertion tube and is adapted to the seed delivery part; an exhaust component is rotatably provided inside a fixed box; the device extracts the air inside the seed taking tube through an exhaust fan to form a negative pressure environment inside the tube, thereby adsorbing the alfalfa seeds in the seed storage tank into an adsorption groove, controlling the seed taking tube to rise and separate from the discharge port, and keeping the number of alfalfa seeds adsorbed in each group of adsorption grooves on the outer peripheral side of the seed taking tube basically consistent, thereby releasing the negative pressure inside the seed taking tube, and the alfalfa seeds in the adsorption groove are dropped into the insertion tube through the seed delivery part under the action of gravity, thereby realizing quantitative sowing and improving the emergence rate and survival rate of sowing.

Description

Technical Field

[0001] The invention relates to the technical field of sowing, and more particularly to an alfalfa seed planting device. Background Art

[0002] Alfalfa is an important forage crop, widely used as feed in animal husbandry. In the process of alfalfa cultivation, sowing is a key link, which directly affects the emergence rate, growth and final yield of alfalfa.

[0003] However, due to the small size of alfalfa seeds, there is a large difference in the number of seeds placed in each hole during the sowing process. When the number of seeds in a single hole is too large, it will cause a waste of seeds, which will cause competition for water, resulting in the death of seeds due to water loss, and reduce the survival rate. When the number of seeds in a single hole is too small, it is difficult to ensure that a sufficient number of seedlings grow per unit area, which increases the workload of replanting in the later stage. Therefore, it is difficult to control the number of seeds planted in a single hole in the prior art, which affects the emergence rate and survival rate of sowing. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide an alfalfa seed planting device, which inserts a seed taking tube into a corresponding seed storage tank, and uses an exhaust fan to extract the air inside the seed taking tube to form a negative pressure environment inside the seed storage tank, thereby adsorbing the alfalfa seeds in the seed storage tank into an adsorption groove, and controlling the seed taking tube to rise and separate from the discharge port. The number of alfalfa seeds adsorbed in each group of adsorption grooves on the outer side of the seed taking tube remains basically consistent, and the negative pressure inside the seed taking tube is released. Under the action of gravity, the alfalfa seeds in the adsorption groove fall into the insertion tube through the seed input port, thereby achieving quantitative sowing and improving the sowing emergence rate and survival rate.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for planting alfalfa seeds comprises a planting frame fixedly mounted on the front end of a vehicle; the planting frame comprises a fixing frame; a servo motor is fixedly mounted on the inner bottom surface of the fixing frame; a bidirectional lead screw is fixed on the output end of the servo motor; and a lifting part is symmetrically screwed on the bidirectional lead screw.

[0007] Insert pipes are evenly penetrated and fixed on the inner bottom surface of the fixed frame, and a number of protective barrels coaxial with the corresponding insert pipes are evenly penetrated and fixed on the top; both ends of the protective barrels are opened; a seed storage tank coaxial with the protective barrel is arranged inside the protective barrel; connecting plates are symmetrically fixed between the seed storage tank and the inner wall of the protective barrel; an annular seed outlet groove is formed between the seed storage tank and the inner bottom surface of the protective barrel; a discharge port is opened on the top of the seed storage tank.

[0008] A plurality of seed taking parts that slide with the corresponding seed storage tanks are fixed on one of the lifting parts; a plurality of seed delivery parts that slide with the corresponding insertion tubes are fixed on the other lifting part; a sliding part that slides with the seed delivery part is slidably arranged at the bottom of the insertion tube; a fixing box is fixed on the top of the fixing frame; a shunt pipe and an air delivery pipe are symmetrically connected and arranged on the side surfaces around the fixing box; an exhaust assembly is rotatably arranged inside the fixing box.

[0009] The present invention is further configured as follows: the lifting part includes a lifting plate; a plurality of mounting hole groups are evenly opened on the surface of the lifting plate; an ear plate is fixed to the side of the lifting plate; a screw hole that cooperates with the bidirectional screw thread to rotate is opened on the surface of the ear plate.

[0010] The seed taking part includes a fixed plate; a first mounting plate is fixed on the top of the fixed plate; the seed transport part includes a seed transport square tube; a second mounting plate connected to the seed transport square tube is fixed on the top; the first mounting plate and the second mounting plate are respectively fixedly connected to the corresponding mounting hole groups by fastening bolts.

[0011] The present invention is further configured as follows: a first connecting flange is fixed to the peripheral side of the fixing plate; a second connecting flange is fixed to the top of the protection barrel; and a windproof cloth cover is connected between the first connecting flange and the second connecting flange.

[0012] A seed taking tube connected with the first mounting plate is fixed at the bottom of the fixed plate; the seed taking tube is slidably matched with the discharge port; adsorption grooves are evenly arranged on the side surface around the seed taking tube; and a filter screen is arranged on the bottom surface of the adsorption groove.

[0013] The present invention is further configured as follows: an L-shaped tube connected to the seed storage tank is provided through the peripheral side surface of the protection barrel; and a first conical funnel is fixed to the end of the L-shaped tube.

[0014] A rotating shaft is rotatably arranged through the inner bottom surface of the fixed box; a U-shaped seat is fixed to the bottom surface of the fixed box; a driving motor is installed on the surface of the U-shaped seat; the output end of the driving motor is fixedly connected to the bottom end of the rotating shaft; a first mounting plate is fixed to the top end of the rotating shaft; the exhaust assembly includes a second mounting plate fixedly connected to the first mounting plate by fastening bolts.

[0015] The present invention is further configured as follows: an exhaust fan is fixedly installed on the surface of the second mounting plate; the exhaust end of the exhaust fan is connected to an exhaust pipe, and the exhaust end of the exhaust fan is connected to an exhaust pipe; an annular baffle that rotatably cooperates with a fixed box is fixedly connected between the exhaust pipe and the exhaust pipe.

[0016] A mounting box is fixed at the end of the diversion pipe; a plurality of branch pipes are evenly fixed on the side of the mounting box; a plurality of vertical pipes are evenly penetrated and connected to the surface of the lifting plate; each vertical pipe on the lifting plate connected to the seed taking part is connected to the corresponding branch pipe through a gas hose.

[0017] The present invention is further configured as follows: a plurality of second conical funnels coaxial with the corresponding protection barrels are evenly connected to the top of the fixed frame; and each vertical pipe on the lifting plate connected to the seed delivery part is connected to a seed delivery hose at the bottom of the corresponding second conical funnel.

[0018] The present invention is further configured as follows: a guide plate is fixed at the bottom of the seed transport square tube; an inclined guide groove is provided on the side of the guide plate; a guide groove for slidingly cooperating with the seed transport square tube is provided on the top of the insert tube, and a first semi-conical plug is fixed at the bottom thereof; an inclined seed outlet is provided at the bottom end of the insert tube.

[0019] The sliding part includes a second semi-conical plug; a sealing plate adapted to the oblique seed outlet is fixed on the top of the second semi-conical plug; an arc plate coaxial with the insert is fixed on the top of the sealing plate; a blade is fixed between the second semi-conical plug, the sealing plate and the arc plate.

[0020] A sliding rod is fixed on the side of the arc plate; a ball head is fixed on the end of the sliding rod; a sliding hole that slides with the sliding rod is opened on the side of the insert tube; a slot is opened on the side of the first semi-conical plug; an insertion rod that slides with the slot is fixed on the side of the second semi-conical plug; a tension spring is connected between the insertion rod and the slot.

[0021] The present invention is further configured as follows: extension plates are symmetrically fixed on two opposite sides of the fixing frame; a fixing plate is arranged directly above the fixing frame; an electric push rod is fixed between the fixing plate and the extension plate; and the fixing plate is fixed to a designated installation position of the vehicle by fastening bolts.

[0022] A controller is installed on the surface of the fixing frame; the output end of the controller is electrically connected to the servo motor, the drive motor, the exhaust fan and the electric push rod respectively.

[0023] The advantages of the present invention are:

[0024] 1. The present invention inserts a seed taking tube into a corresponding seed storage tank, and uses an exhaust fan to extract the air inside the seed taking tube to form a negative pressure environment inside the seed storage tank, so that the alfalfa seeds in the seed storage tank are adsorbed into the adsorption groove, and the seed taking tube is controlled to rise and detach from the discharge port. The number of alfalfa seeds adsorbed in each group of adsorption grooves on the outer peripheral side of the seed taking tube remains basically consistent, and the negative pressure inside the seed taking tube is released. Under the action of gravity, the alfalfa seeds in the adsorption groove fall into the insertion tube through the seed input port, thereby realizing quantitative sowing and improving the sowing emergence rate and survival rate.

[0025] 2. The present invention controls the rotation of the bidirectional screw rod to drive the two sets of lifting parts to move synchronously. When the seed taking tube rises, the seed delivery square tube descends synchronously. When the seed delivery part descends, the sliding part is driven to slide, so that the oblique seed outlet is opened and alfalfa seeds fall into the soil. When the seed taking tube descends, the seed delivery part rises synchronously. When the seed delivery part rises, the sliding part is driven to slide and reset in the opposite direction under the elastic reset force of the tension spring, so that the oblique seed outlet is closed, and the planting of alfalfa seeds is completed. The degree of automation is high, and the planting efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic structural diagram of an alfalfa seed planting device.

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of the structure from a frontal perspective.

[0028] Figure 3 It is a structural schematic diagram of the planting rack of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the lifting part of the present invention.

[0030] Figure 5 It is a structural schematic diagram of the seed taking part of the present invention.

[0031] Figure 6 It is a schematic diagram of the structure of the seed delivery part of the present invention.

[0032] Figure 7 It is a schematic structural diagram of the sliding part of the present invention.

[0033] Figure 8 It is a schematic structural diagram of the exhaust assembly of the present invention.

[0034] Fig. 9 It is a schematic diagram of the structure of the present invention in different states, wherein:

[0035] (a) is a schematic diagram of the structure in the seed taking state, and (b) is a schematic diagram of the structure in the seed transporting state.

[0036] Fig.10 For the present invention Fig. 9 A magnified image of area A.

[0037] In the figure: 1. Planting rack; 2. Fixing frame; 3. Servo motor; 4. Bidirectional screw rod; 5. Lifting part; 6. Insertion tube; 7. Protective barrel; 8. Seed storage tank; 9. Connecting plate; 10. Annular seed discharging groove; 11. Discharging port; 12. Seed taking part; 13. Seed delivery part; 14. Sliding part; 15. Fixing box; 16. Diverter pipe; 17. Air delivery pipe; 18. Exhaust assembly; 19. Lifting plate; 20. Mounting hole group; 21. Ear plate; 22. Screw hole; 23. Fixing plate; 24. First mounting plate; 25. Seed delivery square tube; 26. Second mounting plate; 27. First connecting flange; 28. Second connecting flange; 29. ​​Windproof cloth cover; 30. Seed taking tube; 31. Adsorption tank; 32. Filter screen; 33. L-shaped tube; 34. 4. The first conical funnel; 35. The U-shaped seat; 36. The driving motor; 37. The first mounting plate; 38. The second mounting plate; 39. The exhaust fan; 40. The exhaust pipe; 41. The exhaust pipe; 42. The annular baffle; 43. The mounting box; 44. The branch pipe; 45. The vertical pipe; 46. The second conical funnel; 47. The seed delivery hose; 48. The guide plate; 49. The oblique guide groove; 50. The guide groove; 51. The first semi-conical plug; 52. The oblique seed outlet; 53. The second semi-conical plug; 54. The sealing plate; 55. The arc plate; 56. The blade; 57. The slide rod; 58. The ball head; 59. The slide hole; 60. The slot; 61. The plug rod; 62. The tension spring; 63. The extension plate; 64. The fixing plate; 65. The electric push rod; 66. The controller. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0040] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0041] For example, see Figure 1-10 , the present invention provides the following technical solutions:

[0042] A device for planting alfalfa seeds, specifically, comprises a planting frame 1 fixedly mounted on the front end of a vehicle; the planting frame 1 comprises a fixing frame 2; a servo motor 3 is fixedly mounted on the inner bottom surface of the fixing frame 2; a bidirectional screw rod 4 is fixed on the output end of the servo motor 3; a lifting part 5 is symmetrically screwed on the bidirectional screw rod 4; an insert 6 is uniformly penetrated and fixed on the inner bottom surface of the fixing frame 2, and a plurality of protective barrels 7 coaxial with the corresponding insert 6 are uniformly penetrated and fixed on the top thereof; both ends of the protective barrel 7 are opened; a seed storage tank 8 coaxial with the protective barrel 7 is arranged inside the protective barrel 7; the seed storage tank 8 is symmetrically fixed to the inner wall of the protective barrel 7 A connecting plate 9 is fixed; an annular seed outlet groove 10 is formed between the seed storage tank 8 and the inner bottom surface of the protective barrel 7; a discharge port 11 is opened at the top of the seed storage tank 8; a plurality of seed taking parts 12 that slide with the corresponding seed storage tank 8 are fixed on one lifting part 5; a plurality of seed delivery parts 13 that slide with the corresponding insertion tube 6 are fixed on the other lifting part 5; a sliding part 14 that is compatible with the seed delivery part 13 is slidably arranged at the bottom of the insertion tube 6; a fixed box 15 is fixed on the top of the fixed frame 2; a shunt pipe 16 and an air delivery pipe 17 are symmetrically connected to the side surfaces of the fixed box 15; an exhaust assembly 18 is rotatably arranged inside the fixed box 15.

[0043] Working principle of the first embodiment:

[0044] By placing alfalfa seeds in the seed storage tank 8, and by inserting the seed taking part 12 into the corresponding seed storage tank 8, the air inside the seed taking part 12 is sucked away by the exhaust component 18, so that a negative pressure environment is formed inside the seed storage tank 8, thereby adsorbing the alfalfa seeds in the seed storage tank 8, and controlling the seed taking part 12 to rise and separate from the discharge port 11. The number of alfalfa seeds adsorbed on the outer peripheral side of the seed taking part 12 remains basically consistent, and the negative pressure inside the seed taking part 12 is released. The alfalfa seeds adsorbed on the outer peripheral side of the seed taking part 12 fall into the insertion tube 6 through the seed transport part 13 under the action of gravity, thereby achieving quantitative sowing and improving the sowing emergence rate and survival rate.

[0045] For example 2, please refer to Figure 1-10 , the second embodiment makes the following improvements on the basis of the first embodiment. Specifically, the lifting part 5 includes a lifting plate 19; a plurality of mounting hole groups 20 are evenly opened on the surface of the lifting plate 19; an ear plate 21 is fixed to the side of the lifting plate 19; a screw hole 22 for rotating with the two-way screw rod 4 is opened on the surface of the ear plate 21; the seed taking part 12 includes a fixed plate 23; a first mounting plate 24 is fixed on the top of the fixed plate 23; the seed delivery part 13 includes a seed delivery square tube 25; a second mounting plate 26 connected to the seed delivery square tube 25 is fixed on the top; the first mounting plate 24 and the second mounting plate 26 are respectively fixedly connected to the corresponding mounting hole groups 20 by fastening bolts.

[0046] A first connecting flange 27 is fixed to the side surface of the fixed plate 23; a second connecting flange 28 is fixed to the top of the protective barrel 7; a windproof cloth cover 29 is connected between the first connecting flange 27 and the second connecting flange 28; a seed taking tube 30 connected to the first mounting plate 24 is fixed to the bottom of the fixed plate 23; the seed taking tube 30 is slidably matched with the discharge port 11; adsorption grooves 31 are evenly arranged on the side surfaces of the seed taking tube 30; a filter screen plate 32 is arranged on the inner bottom surface of the adsorption groove 31.

[0047] An L-shaped tube 33 connected to the seed storage tank 8 is provided on the side surface of the protective barrel 7; a first conical funnel 34 is fixed to the end of the L-shaped tube 33; a rotating shaft is rotatably provided on the inner bottom surface of the fixed box 15; a U-shaped seat 35 is fixed to the bottom surface of the fixed box 15; a driving motor 36 is installed on the surface of the U-shaped seat 35; the output end of the driving motor 36 is fixedly connected to the bottom end of the rotating shaft; a first mounting plate 37 is fixed to the top end of the rotating shaft; the exhaust assembly 18 includes a second mounting plate 38 fixedly connected to the first mounting plate 37 by fastening bolts.

[0048] An exhaust fan 39 is fixedly installed on the surface of the second mounting plate 38; an exhaust pipe 40 is connected to the exhaust end of the exhaust fan 39, and an exhaust pipe 41 is connected to the exhaust end; an annular baffle 42 that rotatably cooperates with the fixing box 15 is fixedly connected between the exhaust pipe 40 and the exhaust pipe 41; a mounting box 43 is fixed to the end of the diverter pipe 16; a number of branch pipes 44 are evenly fixed on the side of the mounting box 43; a number of vertical pipes 45 are evenly penetrated and connected on the surface of the lifting plate 19; each vertical pipe 45 on the lifting plate 19 connected to the seed taking part 12 is connected to the corresponding branch pipe 44 through a gas supply hose.

[0049] A plurality of second conical funnels 46 coaxial with the corresponding protection barrels 7 are evenly connected to the top of the fixed frame 2; each vertical pipe 45 on the lifting plate 19 connected to the seed delivery part 13 is connected to the bottom of the corresponding second conical funnel 46 with a seed delivery hose 47.

[0050] A guide plate 48 is fixed at the bottom of the seed transport square tube 25; an oblique guide groove 49 is provided on the side of the guide plate 48; a guide groove 50 is provided on the top of the insert tube 6 to slide with the seed transport square tube 25, and a first semi-conical plug 51 is fixed at its bottom; an oblique seed outlet 52 is provided at the bottom end of the insert tube 6.

[0051] Working principle of the second embodiment:

[0052] Seed removal process: the seed removal tube 30 is inserted into the corresponding seed storage tank 8 through the discharge port 11, the exhaust pipe 40 is coaxially aligned with the diversion pipe 16, and the exhaust pipe 41 is coaxially aligned with the air supply pipe 17, and the exhaust fan 39 is controlled to start, and the air in the corresponding seed removal tube 30 is extracted through the branch pipes 44 and the air supply hose, so that a negative pressure environment is formed inside each group of seed removal tubes 30, thereby adsorbing the alfalfa seeds in the seed storage tank 8 in the corresponding adsorption groove 31.

[0053] The servo motor 3 is controlled to start and drive the bidirectional screw rod 4 to rotate, thereby driving each group of seed taking parts 12 to slide and rise along the discharge port 11 through the corresponding lifting plate 19 until the adsorption groove 31 on the outer peripheral side of the seed taking tube 30 is separated from the discharge port 11. The number of alfalfa seeds adsorbed in each group of adsorption grooves 31 remains basically consistent, thereby realizing quantitative seed taking of alfalfa seeds. At this time, each group of seed transport hoses 47 is straightened, and at the same time, each group of windproof cloth covers 29 is straightened.

[0054] Seeding process: by controlling the start-up drive motor 36, the rotating shaft and the exhaust assembly 18 fixed on the first mounting plate 37 are driven to rotate synchronously 180°, so that the exhaust pipe 40 is coaxially aligned with the air supply pipe 17, and the exhaust pipe 41 is coaxially aligned with the diversion pipe 16. During this process, the negative pressure environment inside the seed taking tube 30 is released, and the alfalfa seeds fall from the corresponding adsorption groove 31 under the action of gravity, fall into the second conical funnel 46 through the annular seed outlet groove 10, and then fall to the bottom of the insert 6 through the corresponding straightened seed delivery hose 47 and the seed delivery square tube 25 in turn, completing the quantitative seed delivery.

[0055] By rotating the exhaust assembly 18, the exhaust fan 39 is reversed, so that the exhaust fan 39 draws external air into the seed removal tube 30, blows it out through the filter plate 32, and blows out the alfalfa seeds remaining in the adsorption tank 31. At the same time, the flowing airflow accelerates the transportation of alfalfa seeds, further improving the seed transportation efficiency and preventing the alfalfa seeds from clogging and accumulating.

[0056] For example 3, please refer to Figure 1-10 , the third embodiment makes the following improvements on the basis of the second embodiment. Specifically, the sliding part 14 includes a second semi-conical plug 53; a sealing plate 54 adapted to the oblique seed outlet 52 is fixed to the top of the second semi-conical plug 53; an arc plate 55 coaxial with the insert 6 is fixed to the top of the sealing plate 54; a blade 56 is fixed between the second semi-conical plug 53, the sealing plate 54 and the arc plate 55; a sliding rod 57 is fixed to the side of the arc plate 55; a ball head 58 is fixed to the end of the sliding rod 57; a sliding hole 59 slidably matched with the sliding rod 57 is opened on the side of the insert 6; a slot 60 is opened on the side of the first semi-conical plug 51; a plug rod 61 slidably matched with the slot 60 is fixed to the side of the second semi-conical plug 53; a tension spring 62 is connected between the plug rod 61 and the slot 60.

[0057] Extension plates 63 are symmetrically fixed on two opposite sides of the fixed frame 2; a fixed plate 64 is arranged directly above the fixed frame 2; an electric push rod 65 is fixed between the fixed plate 64 and the extension plate 63; the fixed plate 64 is fixed to the designated installation position of the vehicle by fastening bolts; a controller 66 is installed on the surface of the fixed frame 2; the output end of the controller 66 is electrically connected to the servo motor 3, the drive motor 36, the exhaust fan 39 and the electric push rod 65 respectively.

[0058] Working principle of the third embodiment:

[0059] By controlling and starting the two electric push rods 65, the fixed frame 2 drives each group of inserting tubes 6 into the soil, so that the planting depth can be adjusted. During the insertion of the inserting tubes 6 into the soil, the sliding part 14 is tightly fitted on the inserting tubes 6 under the tension of the tension spring 62, so as to achieve the blocking of the bottom of the inserting tube 6. In the blocked state, the first semi-conical plug 51 and the second semi-conical plug 53 form a conical plug part, which is convenient for insertion into the soil.

[0060] During the descent of the seed delivery part 13, the oblique guide groove 49 first contacts the ball head 58. During the continuous descent of the seed delivery part 13, the ball head 58 slides from the oblique guide groove 49 to the side of the guide plate 48. During this process, the ball head 58 is squeezed to drive the sliding part 14 to slide, so that the second semi-conical plug 53 is separated from the first semi-conical plug 51, the sealing plate 54 is separated from the oblique seed outlet 52, the tension spring 62 is stretched, and the alfalfa seeds in the insertion tube 6 fall into the soil. In short, the rotation of the two-way screw rod 4 is controlled to drive the two sets of lifting and lowering Part 5 moves synchronously. When the seed taking tube 30 rises, the seed delivery square tube 25 descends synchronously. When the seed delivery part 13 descends, the sliding part 14 is driven to slide, so that the oblique seed outlet 52 is opened, and alfalfa seeds fall into the soil. When the seed taking tube 30 descends, the seed delivery part 13 rises synchronously. When the seed delivery part 13 rises, the sliding part 14 is driven to slide and reset in the opposite direction under the elastic restoring force of the tension spring 62, so that the oblique seed outlet 52 is closed, and the planting of alfalfa seeds is completed. The degree of automation is high, and the planting efficiency is improved.

[0061] Obviously, the above-described embodiments are only a 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 creative work should fall within the scope of protection of the present invention.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0065] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An alfalfa seed planting device, comprising a planting frame (1) fixedly mounted on a front end of a vehicle; characterized in that: The planting frame (1) comprises a fixed frame (2); a servo motor (3) is fixedly mounted on the inner bottom surface of the fixed frame (2); a bidirectional screw rod (4) is fixed to the output end of the servo motor (3); and a lifting portion (5) is symmetrically screw-connected to the bidirectional screw rod (4); Insertion tubes (6) are uniformly penetrated and fixed on the inner bottom surface of the fixed frame (2), and a plurality of protective barrels (7) coaxial with the corresponding insertion tubes (6) are uniformly penetrated and fixed on the top thereof; both ends of the protective barrel (7) are arranged with openings; a seed storage tank (8) coaxial with the protective barrel (7) is arranged inside the protective barrel (7); a connecting plate (9) is symmetrically fixed between the seed storage tank (8) and the inner wall of the protective barrel (7); an annular seed outlet groove (10) is formed between the seed storage tank (8) and the inner bottom surface of the protective barrel (7); and a discharge port (11) is opened at the top of the seed storage tank (8); A plurality of seed taking parts (12) slidably matched with corresponding seed storage tanks (8) are fixed on one lifting part (5); a plurality of seed delivery parts (13) slidably matched with corresponding insertion tubes (6) are fixed on the other lifting part (5); a sliding part (14) matched with the seed delivery part (13) is slidably provided at the bottom of the insertion tube (6); a fixing box (15) is fixed on the top of the fixing frame (2); a shunt pipe (16) and an air delivery pipe (17) are symmetrically connected and provided on the side surface of the fixing box (15); an exhaust assembly (18) is rotatably provided inside the fixing box (15); The lifting part (5) comprises a lifting plate (19); a plurality of mounting hole groups (20) are evenly formed on the surface of the lifting plate (19); an ear plate (21) is fixed to the side of the lifting plate (19); a screw hole (22) is formed on the surface of the ear plate (21) and is rotatably matched with the thread of the bidirectional screw rod (4); The seed taking part (12) comprises a fixing plate (23); a first mounting plate (24) is fixed on the top of the fixing plate (23); the seed transporting part (13) comprises a seed transporting square tube (25); a second mounting plate (26) connected to the seed transporting square tube (25) is fixed on the top; the first mounting plate (24) and the second mounting plate (26) are respectively fixedly connected to the corresponding mounting hole groups (20) by fastening bolts; A guide plate (48) is fixed at the bottom of the seed transport square tube (25); an oblique guide groove (49) is provided on the side of the guide plate (48); a guide groove (50) is provided on the top of the insertion tube (6) for slidingly matching with the seed transport square tube (25), and a first semi-conical plug (51) is fixed at the bottom; and an oblique seed outlet (52) is provided at the bottom end of the insertion tube (6); The sliding portion (14) comprises a second semi-conical plug (53); a sealing plate (54) adapted to the oblique seed outlet (52) is fixed to the top of the second semi-conical plug (53); an arc-shaped plate (55) coaxial with the insertion tube (6) is fixed to the top of the sealing plate (54); a blade (56) is fixed between the second semi-conical plug (53), the sealing plate (54) and the arc-shaped plate (55); A slide rod (57) is fixed to the side of the arc plate (55); a ball head (58) is fixed to the end of the slide rod (57); a slide hole (59) is provided on the side of the insert tube (6) and is slidably matched with the slide rod (57); a slot (60) is provided on the side of the first semi-conical plug (51); an insert rod (61) is fixed to the side of the second semi-conical plug (53) and is slidably matched with the slot (60); a tension spring (62) is connected between the insert rod (61) and the slot (60); Extension plates (63) are symmetrically fixed on two opposite sides of the fixing frame (2); a fixing plate (64) is arranged directly above the fixing frame (2); an electric push rod (65) is fixed between the fixing plate (64) and the extension plate (63); and the fixing plate (64) is fixed to a designated installation position of the vehicle by means of fastening bolts.

2. The alfalfa seed planting device according to claim 1, characterized in that: A first connecting flange (27) is fixed to the side surface of the fixing plate (23); a second connecting flange (28) is fixed to the top of the protection barrel (7); and a windproof cloth cover (29) is connected between the first connecting flange (27) and the second connecting flange (28). A seed taking tube (30) connected to the first mounting plate (24) is fixed to the bottom of the fixed plate (23); the seed taking tube (30) is slidably matched with the discharge port (11); adsorption grooves (31) are evenly arranged on the side surface of the seed taking tube (30); and a filter screen plate (32) is arranged on the inner bottom surface of the adsorption groove (31).

3. The alfalfa seed planting device according to claim 2, characterized in that: An L-shaped tube (33) communicating with the seed storage tank (8) is provided through the side surface of the protective barrel (7); a first conical funnel (34) is fixed to the end of the L-shaped tube (33); A rotating shaft is rotatably provided through the inner bottom surface of the fixed box (15); a U-shaped seat (35) is fixed to the bottom surface of the fixed box (15); a driving motor (36) is mounted on the surface of the U-shaped seat (35); an output end of the driving motor (36) is fixedly connected to the bottom end of the rotating shaft; a first mounting plate (37) is fixed to the top end of the rotating shaft; and the exhaust assembly (18) comprises a second mounting plate (38) fixedly connected to the first mounting plate (37) by means of fastening bolts.

4. The alfalfa seed planting device according to claim 3, characterized in that: An exhaust fan (39) is fixedly mounted on the surface of the second mounting plate (38); an exhaust pipe (40) is connected to the exhaust end of the exhaust fan (39), and an exhaust pipe (41) is connected to the exhaust end thereof; an annular baffle (42) rotatably matched with the fixing box (15) is fixedly connected between the exhaust pipe (40) and the exhaust pipe (41); A mounting box (43) is fixed to the end of the flow distribution pipe (16); a plurality of branch pipes (44) are evenly fixed to the side of the mounting box (43); a plurality of vertical pipes (45) are evenly penetrated and connected to the surface of the lifting plate (19); and each vertical pipe (45) on the lifting plate (19) connected to the seed taking part (12) is connected to the corresponding branch pipe (44) via a gas transmission hose.

5. The alfalfa seed planting device according to claim 4, characterized in that: A plurality of second conical funnels (46) coaxial with the corresponding protection barrels (7) are evenly connected to the top of the fixed frame (2); each vertical pipe (45) on the lifting plate (19) connected to the seed delivery part (13) is connected to the bottom of the corresponding second conical funnel (46) via a seed delivery hose (47).

6. The alfalfa seed planting device according to claim 5, characterized in that: A controller (66) is mounted on the surface of the fixed frame (2); an output end of the controller (66) is electrically connected to the servo motor (3), the drive motor (36), the exhaust fan (39), and the electric push rod (65).

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