Precision seeding device and method

Abstract

The application provides a precision seeding device and method, which comprises a rack, a mulching assembly arranged on the rack and comprising a pay-off roller part and a transmission roller part, the pay-off roller part being capable of forming a mulch and conveying the mulch to the transmission roller part, a motor disc assembly connected to the transmission roller part and driving intermittent rotation of the transmission roller part, a seeding transmission assembly arranged at the middle part of the rack and located at the front side of the transmission roller part, a connecting rod transmission assembly connected between the motor disc assembly and the seeding transmission assembly, and a seeding assembly arranged at the rear end of the seeding transmission assembly. The application can improve the seeding efficiency and reduce seed damage in the seeding process.

Description

TECHNICAL FIELD

[0001] The present application relates to an agricultural seeding device, in particular to a precision seeding device and method. BACKGROUND

[0002] Root vegetables have high yield, storage tolerance, simple management, and can be supplied for a long time, so they have become one of the main vegetables in seasons with poor weather or areas with insufficient fruit and vegetable supply. The planting area of these vegetables is increasing, and the yield is steadily rising, which plays an important role in ensuring food security and promoting the income of planters. Improving seeding quality is a key way to improve yield, however, the seed characteristics of some root vegetables are small in size and light in weight, which have special technical requirements for the seeding process.

[0003] In the existing technology of agricultural seeding, there are two ways: pneumatic seeding and mechanical seeding. The pneumatic seeding technology uses a pneumatic seed sowing device, which is not easy to achieve precision seeding, and only relies on gravity to sow seeds, which can easily cause small-diameter seeds to be stuck in the seed hole, resulting in seed over-sowing and missing. In comparison, the mechanical seeding technology uses a mechanical precision seed sowing device, which has a simple structure, is easy to repair and maintain, has good stability at low speed, consumes less power than pneumatic seed sowing devices, and has low manufacturing costs. It is a common existing technology for small-diameter seed seeding. However, due to the inherent defects of the mechanical seed sowing device, it has poor adaptability to seed shape, it is difficult to sow single seeds of small-diameter seeds, and seed damage occurs easily during the filling and cleaning stages, resulting in a high seed breakage rate. Therefore, the seeds need to be strictly selected before seeding. In addition, for both pneumatic and mechanical seeding methods, the seeds need to fall from the seed sowing pipe to the ground, and then the soil covering device is used to press the soil to complete the soil covering process, which can easily lead to poor uniformity of seed spacing and consistency of seeding depth.

[0004] Therefore, how to design a precision seeding device and method that can solve the defects in the prior art has become a problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a precision seeding device and method that can improve seeding efficiency and reduce seed damage during the seeding process.

[0006] To achieve the above purpose, the present application provides a precision seeding device, comprising:

[0007] a rack;

[0008] a film covering assembly arranged on the rack and comprising a pay-off roller part and a transmission roller part, the pay-off roller part being capable of forming a soil covering film and conveying it to the transmission roller part;

[0009] A motor disc assembly is connected to the transmission roller part and drives intermittent rotation thereof;

[0010] A seed-throwing transmission assembly is arranged at the middle of the frame and located at the front side of the transmission roller part;

[0011] A connecting rod transmission assembly is connected between the motor disc assembly and the seed-throwing transmission assembly, and under the drive of the motor disc assembly, the connecting rod transmission assembly drives the seed-throwing transmission assembly to switch between a horizontal state and a vertical state when the transmission roller part rotates intermittently; and

[0012] A seed-throwing assembly is arranged at the rear end of the seed-throwing transmission assembly, and the seed-throwing assembly sucks seeds in the vertical state and throws seeds on the mulching film on the transmission roller part in the horizontal state.

[0013] The frame includes two side walls, two moving wheel parts arranged below each side wall for moving the frame, and a pull rod connected to the front side of the two side walls.

[0014] The frame includes two side walls, and the fixed auxiliary frame includes a bottom plate arranged below the frame between the two side walls and two L-shaped frames arranged on both sides of the bottom plate.

[0015] The unwinding roller part of the mulching film assembly is arranged in the frame and includes two mounting plates and two unwinding rollers, the frame includes two side walls, the two mounting plates are arranged on the rear of the two side walls, the two unwinding rollers are arranged between the two mounting plates and are distributed in an upper and lower manner, the upper unwinding roller is provided with a sticky film, and the lower unwinding roller is provided with a thin film, the sticky film and the thin film are combined and unwound in the direction of the transmission roller part to form the mulching film with a sticky function and cover the transmission roller part.

[0016] The transmission roller part of the mulching film assembly is arranged in the frame and located in front of the unwinding roller part, the transmission roller part includes a rotating shaft and a transmission roller, both sides of the frame are provided with two L-shaped frames, the rotating shaft is fixedly arranged at the axis of the transmission roller and rotationally connected to the top end of the two L-shaped frames.

[0017] The seed-throwing transmission assembly includes a fixed part, a frame part, and a seed storage part, the fixed part is arranged in the frame, the front side of the frame part is rotationally connected to the fixed part, the rear side is rotationally connected to the connecting rod transmission assembly, and the seed-throwing assembly is arranged at the rear end of the frame part; the frame part can be switched between the horizontal state and the vertical state under the drive of the connecting rod transmission assembly, drives the seed-throwing assembly to throw seeds on the mulching film in the horizontal state, and drives the seed-throwing assembly to suck seeds in the seed storage part in the vertical state.

[0018] The fixed part comprises two supporting rods, and a bottom plate is arranged below the frame, and the two supporting rods are symmetrically arranged on the front side of the bottom plate, and the frame part is rotationally connected to the upper end of the two supporting rods.

[0019] The storage part is a storage box, and a bottom plate is arranged below the frame, and the storage box is arranged on the bottom plate and used for storing seeds.

[0020] The frame part comprises two mounting strips, two sliding grooves and two sliding blocks, the two sliding grooves are arranged on the front side of the two mounting strips, the two sliding blocks are respectively arranged in the two sliding grooves and can slide and be limited in the two sliding grooves, the two sliding blocks are rotationally connected to the fixed part, and the seed throwing assembly is arranged at the rear end of the two mounting strips; in the vertical state and the horizontal state, the two mounting strips can be switched between the longitudinal state and the transverse state, in the longitudinal state of the mounting strips, the seed throwing assembly sucks seeds from the storage part, and in the transverse state of the mounting strips, the seed throwing assembly throws seeds on the mulching film.

[0021] The seed throwing assembly comprises a plurality of suction pipes, a conduit part and a gas supply control part, the plurality of suction pipes are arranged at the rear end of the seed throwing transmission assembly, the gas supply control part is communicated with the gas inlets of the plurality of suction pipes through the conduit part, in the vertical state, the gas supply control part sucks air to make the plurality of suction pipes suck seeds inward, and in the horizontal state, the gas supply control part releases air to make the plurality of suction pipes throw seeds outward.

[0022] The seed throwing assembly further comprises a first mounting frame and a plurality of first transmission blocks, the first mounting frame is arranged at the rear end of the seed throwing transmission assembly, the plurality of first transmission blocks are slidingly arranged in the first mounting frame, and the plurality of suction pipes are arranged on the seed throwing transmission assembly by being arranged on the plurality of first transmission blocks.

[0023] The seed throwing assembly further comprises a first distance adjusting plate assembly, the first distance adjusting plate assembly comprises two first mounting blocks, two electric telescopic rods, a transmission plate and a plurality of transmission columns, the two first mounting blocks are arranged at the rear end of the seed throwing transmission assembly and located on the front side of the first mounting frame, the two electric telescopic rods are connected to the two first mounting blocks, the two ends of the transmission plate are connected to the telescopic ends of the two electric telescopic rods, a plurality of transmission grooves are arranged on the transmission plate in a figure-of-eight symmetric distribution, one end of the transmission column is arranged in the transmission groove, and the other end of the transmission column is connected to the first transmission block.

[0024] The conduit part comprises a first conduit, a plurality of second conduits and a plurality of control valves, one end of the plurality of second conduits is communicated with the first conduit, the other end of the plurality of second conduits is communicated with the plurality of suction pipes, the control valves are arranged on the second conduits, and the first conduit is communicated with the gas supply control part.

[0025] The air supply control unit comprises an air pump and a pressure sensor. The air pump is arranged on the frame and connected to the conduit unit to supply air thereto. The pressure sensor is arranged on the seed dropping transmission assembly and can monitor the state thereof. In the vertical state, the pressure sensor controls the air pump to suck air. In the horizontal state, the pressure sensor controls the air pump to release air.

[0026] The seed dropping device further comprises a liquid spraying assembly. The liquid spraying assembly comprises a liquid storage tank, a piston tank, a transmission bar and a spraying head. The liquid storage tank is arranged at the lower part of the frame and connected to the piston tank through a first communication pipe. The piston tank is arranged at the front end of the seed dropping transmission assembly and connected to the spraying head through a second communication pipe. The spraying head is arranged at the rear end of the seed dropping transmission assembly. The seed dropping transmission assembly comprises two sliding grooves and two sliding blocks. The transmission bar is connected between the two sliding blocks. The piston plate in the piston tank is connected to the transmission bar through a piston rod. In the horizontal state or the vertical state, the two sliding blocks move in the sliding grooves away from the seed dropping assembly to drive the transmission bar to press the piston tank, so that the piston tank delivers liquid to the spraying head and sprays liquid outward.

[0027] The first communication pipe is provided with a first one-way valve facing the piston tank. The second communication pipe is provided with a second one-way valve facing the spraying head.

[0028] The motor disc assembly comprises a connecting shaft, a motor driving assembly and an intermittent rotation assembly. The two sides of the inner part of the frame are provided with two L-shaped frames. The connecting shaft is rotatably connected to the upper part of the L-shaped frame. The motor driving assembly is arranged on the L-shaped frame and can drive the connecting shaft to rotate. The intermittent rotation assembly is arranged on the connecting shaft and is driven by the connecting shaft to rotate intermittently. The transmission roller part is connected to the intermittent rotation assembly and rotates intermittently synchronously under the driving of the intermittent rotation assembly.

[0029] The motor driving assembly comprises a micro motor and a transmission belt. The transmission belt is sleeved between the output shaft of the micro motor and the connecting shaft, so that the connecting shaft can rotate under the driving of the micro motor.

[0030] The intermittent rotation assembly comprises an incomplete transmission wheel, a lever and a transmission disc. The transmission roller part comprises a rotating shaft and a transmission roller. The rotating shaft is fixed between the transmission disc and the transmission roller and makes them rotate synchronously. The transmission disc comprises a plurality of arc-shaped grooves and U-shaped grooves staggered on the outer periphery of the disc body. The incomplete transmission wheel and the lever are fixed to the end of the connecting shaft. The incomplete transmission wheel has an outer circular arc segment matched with the arc-shaped groove of the transmission disc. The lever has a block matched with the U-shaped groove of the transmission disc. When the connecting shaft rotates, the incomplete transmission wheel and the lever will be combined with the transmission disc alternately, so that the transmission disc rotates intermittently.

[0031] The connecting rod transmission assembly comprises two installation rods, a transmission shaft, two first transmission rods, two second transmission rods, two third transmission rods and two fourth transmission rods. A bottom plate is arranged below the frame, the two installation rods are symmetrically arranged at the rear side of the bottom plate, the transmission shaft is rotatably arranged between the two installation rods, one end of the two first transmission rods is fixedly connected to the transmission shaft and located at the inner side wall of the installation rod, the other end of the two first transmission rods is rotatably connected to the seed sowing transmission assembly, one end of the two second transmission rods is fixedly connected to the transmission shaft and located at the outer side wall of the installation rod, the other end of the two second transmission rods is rotatably connected to one end of the two third transmission rods, the other end of the two third transmission rods is rotatably connected to one end of the two fourth transmission rods, and the other end of the two fourth transmission rods is fixedly connected to the power output end of the motor disc assembly.

[0032] The application further provides a precision sowing device, which comprises a frame, a seed sowing transmission assembly, a film covering assembly and a film pressing assembly.

[0033] The driving part comprises a driving motor and an installation shaft. The driving motor is arranged on the frame, and the installation shaft is arranged on the output end of the driving motor. The furrowing wheel and the soil turning wheel are arranged on the installation shaft.

[0034] The film pressing assembly comprises two supports, a second installation frame and a plurality of pressing rollers. The two supports are arranged at the rear sides of the frame, the second installation frame is connected between the lower ends of the two supports, and the plurality of pressing rollers are arranged in the second installation frame in a transverse distribution mode.

[0035] The film pressing assembly further comprises a plurality of second transmission blocks and a second distance adjusting plate assembly. The plurality of second transmission blocks are arranged in the second installation frame in a sliding mode, the plurality of pressing rollers are arranged in the second installation frame by being connected to the plurality of second transmission blocks, and the second distance adjusting plate assembly is arranged in the second installation frame and connected to the plurality of second transmission blocks to adjust the distribution distance of the plurality of pressing rollers.

[0036] The application further provides a precision sowing method, which uses the precision sowing device and comprises the following steps.

[0037] Step 1) A sticking film and a film are attached by the film covering assembly to form a film with a sticking function, and the transmission roller part intermittently transports the film under the action of the motor disc assembly.

[0038] Step 2) during the conveying of the mulching film, the seed-throwing transmission assembly is switched to the vertical state to make the seed-throwing assembly perform the action of sucking seeds; when the conveying of the mulching film is stopped, the seed-throwing transmission assembly is switched to the horizontal state to make the seed-throwing assembly throw the sucked seeds to the adhering film of the mulching film; and

[0039] Step 3) the conveying roller part further conveys the mulching film with the thrown seeds to cover the soil, and the seeds thrown to the mulching film are covered by the mulching film and interact with the soil.

[0040] Step 4) the precision seeding device further comprises a furrowing and covering assembly, after the mulching film covers the soil, part of the soil is further covered on the mulching film by the action of the furrowing and covering assembly to realize the compaction of the mulching film, and the film-seeding process of the seeds is completed.

[0041] The present application is described in detail below in combination with the drawings and specific embodiments, but is not limited to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 A perspective structural schematic view of the precision seeding device provided by a preferred embodiment of the present application from the front side view angle;

[0043] Figure 2 A perspective structural schematic view of the precision seeding device provided by a preferred embodiment of the present application from the rear side view angle;

[0044] Figure 3 A structural exploded schematic view of the precision seeding device provided by a preferred embodiment of the present application;

[0045] Figure 4 A structural side view of the precision seeding device provided by a preferred embodiment of the present application;

[0046] Figure 5 An enlarged schematic view of the internal structure of the machine frame of Figure 3 from the rear side view angle;

[0047] Figure 6 A structural side view of Figure 5 ;

[0048] Figure 7 An enlarged schematic view of the internal structure of the machine frame of Figure 3 from the front side view angle;

[0049] Figure 8 An enlarged structural schematic view of the seed-throwing assembly in the precision seeding device provided by a preferred embodiment of the present application;

[0050] Figure 9A structure amplification schematic view of a motor driving assembly in a precision seeding device provided by a preferred embodiment of the present application;

[0051] Figure 10 A structure amplification schematic view of a motor driving assembly in a precision seeding device provided by a preferred embodiment of the present application from another perspective;

[0052] Figure 11 A three-dimensional structure schematic view of a seeding transmission assembly in a precision seeding device provided by a preferred embodiment of the present application in a vertical state;

[0053] Figure 12 A structure side view of a seeding transmission assembly in a precision seeding device provided by a preferred embodiment of the present application in a vertical state;

[0054] Among them, the reference signs:

[0055] 1: frame

[0056] 2: pull rod

[0057] 3: film covering assembly

[0058] 301: mounting plate

[0059] 302: unwinding roller

[0060] 303: adhesive film

[0061] 304: film

[0062] 305: L-shaped frame

[0063] 306: rotating shaft

[0064] 307: transmission roller

[0065] 401: bottom plate

[0066] 402: support rod

[0067] 403: mounting rod

[0068] 404: transmission shaft

[0069] 405: first transmission rod

[0070] 406: second transmission rod

[0071] 407: third transmission rod

[0072] 408: fourth transmission rod

[0073] 409: connecting shaft

[0074] 410: incomplete transmission wheel

[0075] 411: dialing lever

[0076] 4111: lever portion

[0077] 4112: block portion

[0078] 412: transmission disc

[0079] 413: mounting strip

[0080] 414: sliding groove

[0081] 415: sliding block

[0082] 416: placing box

[0083] 418: motor driving assembly

[0084] 4181: micro motor

[0085] 4182: transmission belt

[0086] 419: pressure sensor

[0087] 5: liquid spraying assembly

[0088] 501: connecting plate

[0089] 502: liquid storage tank

[0090] 503: first communication pipe

[0091] 504: piston tank

[0092] 505: second communication pipe

[0093] 506: spraying head

[0094] 507: transmission strip

[0095] 508: piston rod

[0096] 6: seed throwing assembly

[0097] 601: first mounting frame

[0098] 602: first transmission block

[0099] 603: suction pipe

[0100] 604: first guide pipe

[0101] 605: second guide pipe

[0102] 606: control valve

[0103] 607: electric telescopic rod

[0104] 608: transmission plate

[0105] 609: transmission groove

[0106] 610: transmission column

[0107] 611: air pump

[0108] 7: furrowing and covering assembly

[0109] 701: furrowing wheel

[0110] 702: mounting shaft

[0111] 703: turning wheel

[0112] 704: driving motor

[0113] 8: film pressing assembly

[0114] 801: support

[0115] 802: second distance adjusting plate assembly

[0116] 803: pressing roller DETAILED DESCRIPTION

[0117] In order to make the technical features of the present application clear, so that those skilled in the art can clearly understand the structure, characteristics, use mode and technical effects of the present application, the scheme of the present application is described below through specific embodiments, and combined with the drawings. However, the following description is only for illustration and does not limit the present application.

[0118] Please refer to Figures 1 to 7 , and Figures 11 to 12 . Figure 1 The front perspective view of the precision seeding device provided by a preferred embodiment of the present application is shown in the figure. Figure 2 The rear perspective view of the precision seeding device provided by a preferred embodiment of the present application is shown in the figure. Figure 3 The exploded view of the precision seeding device provided by a preferred embodiment of the present application is shown in the figure. Figure 4 The side view of the precision seeding device provided by a preferred embodiment of the present application is shown in the figure. Figure 5 The enlarged view of the internal structure of the machine frame of Figure 3 from the rear side view is shown in the figure. Figure 6 The side view of Figure 5 is shown in the figure. Figure 7 The enlarged view of the internal structure of the machine frame of Figure 3 from the front side view is shown in the figure. Figure 11 The perspective view of the seed throwing transmission assembly of the precision seeding device provided by a preferred embodiment of the present application in the vertical state is shown in the figure. Figure 12The structure side view of the seed feeding transmission assembly of the precision seeding device in the vertical state is provided for a preferred embodiment of the present application.

[0119] An embodiment of the present application provides a precision seeding device, which comprises a frame 1, a mulching assembly 3, a motor disc assembly, a seed feeding transmission assembly, a connecting rod transmission assembly and a seed feeding assembly 6. The mulching assembly 3 is arranged on the frame 1 and comprises a pay-off roller part and a transmission roller part, the pay-off roller part can form a mulching film and deliver it to the transmission roller part. The motor disc assembly is connected to the transmission roller part and drives the intermittent rotation thereof. The seed feeding transmission assembly is arranged at the middle part of the frame 1 and located at the front side of the transmission roller part. The connecting rod transmission assembly is connected between the motor disc assembly and the seed feeding transmission assembly, when the transmission roller part rotates intermittently, the connecting rod transmission assembly drives the seed feeding transmission assembly to switch between a horizontal state and a vertical state under the drive of the motor disc assembly. The seed feeding assembly 6 is arranged at the rear end of the seed feeding transmission assembly, the seed feeding assembly 6 sucks seeds in the vertical state and feeds the mulching film on the transmission roller part in the horizontal state.

[0120] In a preferred embodiment, the frame 1 comprises two side walls, two moving wheel parts arranged below each of the side walls and used for moving the frame 1, and a pull rod 2 connected to the front side of the two side walls.

[0121] In a preferred embodiment, the precision seeding device further comprises a fixed auxiliary frame arranged inside the frame 1, the frame 1 comprises two side walls, the fixed auxiliary frame comprises a bottom plate 401 arranged below the frame 1 and located between the two side walls, and two L-shaped frames 305 arranged on both sides of the bottom plate 401.

[0122] In a preferred embodiment, the pay-off roller part of the mulching assembly 3 is arranged on the frame 1 and comprises two mounting plates 301 and two pay-off rollers 302, the frame 1 comprises two side walls, the two mounting plates 301 are arranged on the rear part of the two side walls correspondingly, and the two pay-off rollers 302 are arranged between the two mounting plates 301 and distributed in an up-down manner, the pay-off roller 302 arranged on the upper side is provided with a sticky film 303, and the pay-off roller 302 arranged on the lower side is provided with a film 304, the sticky film 303 and the film 304 are combined and payed off in the direction of the transmission roller part to form the mulching film with the sticky function and cover the transmission roller part.

[0123] In a preferred embodiment, the transmission roller part of the mulching assembly 3 is arranged inside the frame 1 and located in front of the pay-off roller part, the transmission roller part comprises a rotating shaft 306 and a transmission roller 307, two L-shaped frames 305 are arranged on both sides of the frame 1, the rotating shaft 306 is fixedly arranged at the axis of the transmission roller 307 and rotationally connected to the top end of the two L-shaped frames.

[0124] In a preferred embodiment, the seed sowing transmission assembly comprises a fixed part, a frame part and a seed storage part, the fixed part is arranged on the frame 1, the front side of the frame part is rotationally connected to the fixed part, and the rear side is rotationally connected to the connecting rod transmission assembly, and the seed sowing assembly 6 is arranged at the rear end of the frame part; the frame part can be switched between the horizontal state and the vertical state under the drive of the connecting rod transmission assembly, in the horizontal state, the seed sowing assembly 6 is driven to sow seeds on the soil covering film, and in the vertical state, the seed sowing assembly 6 is driven to suck seeds in the seed storage part.

[0125] In a preferred embodiment, the fixed part comprises two support rods 402, a bottom plate 401 is arranged below the frame 1, and the two support rods 402 are symmetrically arranged on the front side of the bottom plate 401, and the frame part is rotationally connected to the upper end of the two support rods 402.

[0126] In a preferred embodiment, the seed storage part is a storage box 416, a bottom plate 401 is arranged below the frame 1, and the storage box 416 is arranged on the bottom plate 401 and used for storing seeds.

[0127] In a preferred embodiment, the frame part comprises two mounting bars 413, two sliding grooves 414 and two sliding blocks 415, the two sliding grooves 414 are arranged on the front side of the two mounting bars 413, the two sliding blocks 415 are respectively arranged in the two sliding grooves 414 and can be limitedly slid in the two sliding grooves 414, the two sliding blocks 415 are rotationally connected to the fixed part, and the seed sowing assembly 6 is arranged at the rear end of the two mounting bars 413; in the vertical state and the horizontal state, the two mounting bars 413 can be switched between the longitudinal state and the transverse state, in the longitudinal state of the mounting bar 413, the seed sowing assembly 6 sucks seeds in the seed storage part, and in the transverse state of the mounting bar 413, the seed sowing assembly 6 sows seeds on the soil covering film.

[0128] The seed sowing transmission assembly is used for driving the seed sowing assembly 6 to suck seeds and driving the seed sowing assembly 6 to sow seeds on the soil covering film. The seed sowing transmission assembly comprises two support rods 402, two mounting bars 413, two sliding grooves 414, two sliding blocks 415 and a storage box 416. A bottom plate 401 is fixed below the inside of the frame 1, the two support rods 402 are vertically fixed on the front sides of the bottom plate 401, the storage box 416 is arranged on the bottom plate 401 and used for storing seeds, the two sliding blocks 415 are rotationally connected to the upper end of the two support rods 402 through a pin shaft, the two mounting bars 413 are respectively provided with the two sliding grooves 414 on the front side, and the two sliding blocks 415 can be limitedly slid in the two sliding grooves 414, and the seed sowing assembly 6 is arranged at the rear end of the two mounting bars 413.

[0129] The connecting rod transmission assembly is connected to the rear side of the two mounting strips 413 and can drive the two mounting strips 413 to switch between the transverse and longitudinal states. When the two mounting strips 413 are in the longitudinal state, the seed-throwing assembly 6 performs seed suction in the placing box 416, and when the two mounting strips 413 are in the transverse state, the seed-throwing assembly 6 is aligned with the adhering film 303 of the mulch film and sends the seeds to the surface of the adhering film 303.

[0130] Please refer to Figure 8 . Figure 8 The structure of the seed-throwing assembly of the precision seeding device provided in a preferred embodiment of the present application is shown in an enlarged view.

[0131] In a preferred embodiment, the seed-throwing assembly 6 includes a plurality of suction pipes 603, a conduit portion, and a gas supply control portion. The plurality of suction pipes 603 are arranged at the rear end of the seed-throwing transmission assembly. The gas supply control portion is connected to the gas inlets of the plurality of suction pipes 603 through the conduit portion. In the vertical state, the gas supply control portion draws air to cause the plurality of suction pipes 603 to suck seeds inwardly. In the horizontal state, the gas supply control portion releases air to cause the plurality of suction pipes 603 to throw seeds outwardly.

[0132] In a preferred embodiment, the seed-throwing assembly 6 further includes a first mounting frame 601 and a plurality of first transmission blocks 602. The first mounting frame 601 is arranged at the rear end of the seed-throwing transmission assembly. The plurality of first transmission blocks 602 are slidingly arranged inside the first mounting frame 601. The plurality of suction pipes 603 are arranged in the seed-throwing transmission assembly by being arranged in the plurality of first transmission blocks 602.

[0133] In a preferred embodiment, the seed-throwing assembly 6 further includes a first distance adjusting plate assembly. The first distance adjusting plate assembly includes two first mounting blocks, two electric telescopic rods 607, a transmission plate 608, and a plurality of transmission columns 610. The two first mounting blocks are arranged at the rear end of the seed-throwing transmission assembly and located in front of the first mounting frame 601. The two electric telescopic rods 607 are connected to the two first mounting blocks. The two ends of the transmission plate 608 are connected to the telescopic ends of the two electric telescopic rods 607. A plurality of transmission grooves 609 are arranged in the transmission plate 608 in a figure-eight symmetric distribution. One end of the transmission column 610 is arranged in the transmission groove 609, and the other end is connected to the first transmission block 602.

[0134] In a preferred embodiment, the conduit portion includes a first conduit 604, a plurality of second conduits 605, and a plurality of control valves 606. One end of the plurality of second conduits 605 is connected to the first conduit 604, and the other end is connected to the plurality of suction pipes 603. The control valve 606 is arranged in the second conduit 605. The first conduit 604 is connected to the gas supply control portion.

[0135] In a preferred embodiment, the air supply control unit comprises an air pump 611 and a pressure sensor 419. The air pump 611 is arranged on the frame 1 and is connected to the conduit unit to supply air thereto. The pressure sensor 419 is arranged on the seed sowing transmission assembly and can monitor the state of the slider. When the slider is in the vertical state, the pressure sensor 419 controls the air pump 611 to suck air. When the slider is in the horizontal state, the pressure sensor 419 controls the air pump 611 to release air.

[0136] The seed sowing assembly 6 is used to sow seeds on the mulch film on the transmission roller unit. The seed sowing assembly 6 can comprise a first mounting frame 601, a plurality of first transmission blocks 602, a plurality of suction pipes 603, a first conduit 604, a plurality of second conduits 605, a plurality of control valves 606, an air pump 611 and a pressure sensor 419. The first mounting frame 601 is arranged at the rear end of the seed sowing transmission assembly. The plurality of first transmission blocks 602 are slidingly arranged inside the first mounting frame 601. Each of the suction pipes 603 is arranged on one side of each of the first transmission blocks 602 close to the mulch film. The air pump 611 is arranged on one side of the frame 1. The first conduit 604 is connected to the air pump 611 and extends to the front side of the plurality of suction pipes 603. The plurality of second conduits 605 are connected to the first conduit 604 at one end and are connected to the plurality of suction pipes 603 through the first transmission blocks 602 at the other end. Each of the second conduits 605 is provided with a control valve 606 to control the air supply range of the second conduit 605. The pressure sensor 419 is arranged on the side of the slider 415 of the seed sowing transmission assembly away from the plurality of suction pipes 603 and can monitor the state of the slider 415, thereby monitoring the horizontal and vertical states of the seed sowing transmission assembly to control the air suction and release actions of the air pump 611.

[0137] In addition, the seed sowing assembly 6 can also adjust the spacing of the plurality of suction pipes 603 through the first distance adjusting plate assembly to adjust the sowing density of the plurality of suction pipes 603. The transmission plates 608 of the first distance adjusting plate assembly are fixed to the rear ends of the two mounting strips 413 through the two first mounting blocks on both sides of the transmission plates 608 and can adjust the height of the transmission plates 608 through the electric telescopic rods 607. When the height of the transmission plates 608 changes, the plurality of transmission columns 610 slide in the plurality of eight-character symmetrically distributed transmission grooves 609, thereby driving the suction pipes 603 on the first transmission blocks 602 to move inward or outward. When the transmission plates 608 move upward, the plurality of transmission columns 610 drive the plurality of suction pipes 603 to move away from each other. When the transmission plates 608 move downward, the plurality of transmission columns 610 drive the plurality of suction pipes 603 to move close to each other.

[0138] In a preferred embodiment, the precision seeding device further comprises a liquid spraying assembly 5, which comprises a liquid storage tank 502, a piston tank 504, a transmission bar 507 and a spraying head 506. The liquid storage tank 502 is arranged at the lower part of the frame 1 and is connected to the piston tank 504 through a first communication pipe 503. The piston tank 504 is arranged at the front end of the seeding transmission assembly and is connected to the spraying head 506 through a second communication pipe 505. The spraying head 506 is arranged at the rear end of the seeding transmission assembly. The seeding transmission assembly comprises two sliding grooves 414 and two sliding blocks 415. The transmission bar 507 is connected between the two sliding blocks 415. The piston plate in the piston tank 504 is connected to the transmission bar 507 through a piston rod 508. In the horizontal state or the vertical state, the two sliding blocks 415 move in the sliding grooves 414 away from the seeding assembly 6 to drive the transmission bar 507 to extrude the piston tank 504, so as to deliver liquid to the spraying head 506 and spray liquid outward.

[0139] In a preferred embodiment, the first communication pipe 503 is provided with a first one-way valve towards the piston tank 504. The second communication pipe 505 is provided with a second one-way valve towards the spraying head 506.

[0140] The liquid spraying assembly 5 of the present application is used for spraying liquid to seeds. The liquid spraying assembly 5 comprises a connecting plate 501, a liquid storage tank 502, a first communication pipe 503, a piston tank 504, a second communication pipe 505, a spraying head 506, a transmission bar 507 and a piston rod 508. The piston tank 504 is connected to the front end of the two mounting bars 413 of the seeding transmission assembly through the connecting plate 501. The spraying head 506 is connected to the top of the first mounting frame 601 of the seeding assembly 6 through two second mounting blocks on both sides, so as to be arranged transversely above the plurality of suction pipes 603. The input end of the piston tank 504 is connected to the liquid storage tank 502 arranged inside the frame 1 through the first communication pipe 503. The output end is connected to the spraying head 506 through the second communication pipe 505. One-way valves can be arranged in the first communication pipe 503 and the second communication pipe 505 to prevent liquid backflow. The transmission bar 507 is connected between the two sliding blocks 415 of the seeding transmission assembly. One end of the piston rod 508 is connected to the transmission bar 507. The other end extends into the piston tank 504 and is connected to the piston plate arranged in the piston tank 504.

[0141] When the mounting strip 413 of the seed-throwing transmission assembly is switched between the horizontal state and the vertical state, the sliding block 415 will slide in the sliding groove 414 to a position close to the seed-throwing assembly 6, at which time the transmission strip 507 will pull the piston plate in the piston box 504 outward, so that the piston box 504 absorbs liquid from the liquid storage box 502; when the mounting strip 413 of the seed-throwing transmission assembly is in the horizontal state or the vertical state, the sliding block 415 will slide in the sliding groove 414 to a position away from the seed-throwing assembly 6, at which time the transmission strip 507 will push the piston plate in the piston box 504 inward, so that the piston box 504 supplies liquid to the spray head 506 and sprays out, thereby completing the liquid spraying operation on the seeds on the placing box 416 or the surface of the mulching film (adhesion film 303).

[0142] Please refer to Figure 9 and Figure 10 . Figure 9 A structure enlarged schematic view of a motor driving assembly in a precision seed-planting device provided by a preferred embodiment of the present application; Figure 10 A structure enlarged schematic view of a motor driving assembly in a precision seed-planting device provided by a preferred embodiment of the present application from another perspective.

[0143] In a preferred embodiment, the motor disc assembly includes a connecting shaft 409, a motor driving assembly 418, and an intermittent rotation assembly. The inside of the frame 1 is provided with two L-shaped frames 305 on both sides. The connecting shaft 409 is rotationally connected to the upper part of the L-shaped frame 305. The motor driving assembly 418 is arranged on the L-shaped frame 305 and can drive the connecting shaft 409 to rotate. The intermittent rotation assembly is arranged on the connecting shaft 409 and is driven by the connecting shaft 409 to rotate intermittently. The transmission roller part is connected to the intermittent rotation assembly and rotates synchronously and intermittently under the driving of the intermittent rotation assembly.

[0144] In a preferred embodiment, the motor driving assembly 418 includes a micro motor 4181 and a transmission belt 4182. The transmission belt 4182 is sleeved between the output shaft of the micro motor 4181 and the connecting shaft 409, so that the connecting shaft 409 can rotate under the driving of the micro motor 4181.

[0145] In a preferred embodiment, the intermittent rotation assembly comprises an incomplete transmission wheel 410, a push lever 411 and a transmission disc 412, the transmission roller assembly comprises a rotation shaft 306 and a transmission roller 307, the rotation shaft 306 is fixed between the transmission disc 412 and the transmission roller 307 to synchronize the rotation of the two, the transmission disc 412 comprises a plurality of arc-shaped grooves and U-shaped grooves staggered on the outer periphery of the disc body, the incomplete transmission wheel 410 and the push lever 411 are fixed to the end of the connecting shaft 409, the incomplete transmission wheel 410 has an outer circular arc segment adapted to the arc-shaped grooves of the transmission disc 412, and the push lever 411 has a block portion 4112 adapted to the U-shaped grooves of the transmission disc 412, when the connecting shaft 409 rotates, the incomplete transmission wheel 410 and the push lever 411 will be combined with the transmission disc 412 alternately, so that the transmission disc 412 rotates intermittently.

[0146] The motor disc assembly of the present application is used to drive the intermittent rotation of the transmission roller 307, and to drive the horizontal and vertical state switching of the seed throwing transmission assembly through the connecting rod transmission assembly. The motor disc assembly comprises a connecting shaft 409, an incomplete transmission wheel 410, a push lever 411, a transmission disc 412 and a motor driving assembly 418. The outer periphery of the disc body of the transmission disc 412 comprises a plurality of arc-shaped grooves and U-shaped grooves staggered, one end of the connecting shaft 409 is rotatably connected to the upper part of the L-shaped frame 305, the incomplete transmission wheel 410 and the push lever 411 are fixed to the other end of the connecting shaft 409, one side of the incomplete transmission wheel 410 is fixed to the connecting shaft 409 and the other side is an outer circular arc segment, the push lever 411 comprises a lever portion 4111 and a block portion 4112, one end of the lever portion 4111 is connected to the connecting shaft 409 and the other end is provided with the block portion 4112, the direction of the outer circular arc segment of the incomplete transmission wheel 410 and the block portion 4112 of the push lever 411 is opposite and the shapes are respectively adapted to the arc-shaped grooves and U-shaped grooves of the transmission disc 412. The rotation shaft 306 is fixed between the shaft centers of the transmission disc 412 and the transmission roller 307 to synchronize the movement of the two.

[0147] When the motor driving assembly 418 drives the connecting shaft 409 to rotate, the outer arc segment of the incomplete transmission wheel 410 and the block part 4112 of the push rod 411 will rotate and sequentially engage with the arc-shaped groove and the U-shaped groove of the transmission disc 412. When the incomplete transmission wheel 410 and the arc-shaped groove of the transmission disc 412 are engaged, the incomplete transmission wheel 410 can rotate under the driving of the connecting shaft 409 but cannot drive the transmission disc 412 to rotate, so that the transmission disc 412 remains stationary and synchronously drives the transmission roller 307 to remain stationary; as the connecting shaft 409 further rotates, the incomplete transmission wheel 410 is disengaged from the arc-shaped groove of the transmission disc 412, and the block part 4112 of the push rod 411 enters the U-shaped groove of the transmission disc 412 and drives the transmission disc 412 to rotate, which synchronously drives the transmission roller 307 to rotate. Thus, the intermittent rotation of the transmission roller 307 can be realized, and the intermittent conveying of the mulch film can be realized.

[0148] On the other hand, the connecting shaft 409 is also connected with the connecting rod transmission assembly, so that when the connecting shaft 409 rotates, the connecting rod transmission assembly can drive the seed throwing transmission assembly to switch between the vertical and horizontal states, and thus the seed throwing assembly 6 can perform the actions of seed sucking and seed throwing at intervals.

[0149] In a preferred embodiment, the connecting rod transmission assembly includes two installation rods 403, a transmission shaft 404, two first transmission rods 405, two second transmission rods 406, two third transmission rods 407, and two fourth transmission rods 408. A bottom plate 401 is arranged below the frame 1, the two installation rods 403 are symmetrically arranged at the rear side of the bottom plate 401, the transmission shaft 404 is rotatably arranged between the two installation rods 403, one end of the two first transmission rods 405 is fixedly connected to the transmission shaft 404 and located at the inner side wall of the installation rod 403, the other end of the two first transmission rods 405 is rotatably connected to the seed throwing transmission assembly, one end of the two second transmission rods 406 is fixedly connected to the transmission shaft 404 and located at the outer side wall of the installation rod 403, the other end of the two second transmission rods 406 is rotatably connected to one end of the two third transmission rods 407, the other end of the two third transmission rods 407 is rotatably connected to one end of the two fourth transmission rods 408, and the other end of the two fourth transmission rods 408 is fixedly connected to the power output end of the motor disc assembly.

[0150] The connecting rod transmission assembly is arranged between the motor disc assembly and the seed dropping transmission assembly. When the motor disc assembly drives the transmission roller 307 to rotate intermittently, the connecting rod transmission assembly is used to drive the further operation of the seed dropping transmission assembly. The transmission shaft 404 is rotatably connected between the two installation rods 403. The first transmission rod 405 and the second transmission rod 406 on each side are fixed to the end of the transmission shaft 404 and are arranged in an up-down manner on the inner and outer sides of the installation rod 403. The ends of the two first transmission rods 405 away from the transmission shaft 404 are rotatably connected to the two installation strips 413 on the side close to the seed dropping assembly 6. The two ends of the second transmission rod 406 and the fourth transmission rod 408 are rotatably connected through the pin shaft. The other end of the fourth transmission rod 408 is fixedly connected to the connecting shaft 409 (i.e. the power output end) of the motor disc assembly. Thus, when the connecting shaft 409 of the motor disc assembly rotates, the two installation strips 413 are switched between the horizontal state and the vertical state through the transmission effect of the connecting rods.

[0151] In a preferred embodiment, the precision seeding device further comprises two furrowing and covering assemblies 7 arranged symmetrically on both sides of the frame 1 and located behind the transmission roller part. Each furrowing and covering assembly 7 comprises a driving part, a furrowing wheel 701 and a soil turning wheel 703. The driving part is arranged on the frame 1. The furrowing wheel 701 and the soil turning wheel 703 are arranged on the power output end of the driving part, and the furrowing wheel 701 is located outside the soil turning wheel 703.

[0152] In a preferred embodiment, the driving part comprises a driving motor 704 and an installation shaft 702. The driving motor 704 is arranged on the frame 1. The installation shaft 702 is arranged on the output end of the driving motor 704. The furrowing wheel 701 and the soil turning wheel 703 are arranged on the installation shaft 702.

[0153] The furrowing and covering assembly 7 of the present application is used to turn over and cover the soil film after the seeds are dropped. The furrowing and covering assembly 7 is arranged on the frame 1 on both sides behind the transmission roller 307. Each furrowing and covering assembly 7 comprises a driving motor 704, an installation shaft 702, a furrowing wheel 701 and a soil turning wheel 703. The driving motor 704 is arranged on the side wall of the frame 1. The installation shaft 702 is arranged on the output end of the driving motor 704 and extends to the inside of the frame 1. The soil turning wheel 703 and the furrowing wheel 701 are arranged on the installation shaft 702 and are distributed inside and outside.

[0154] The soil covering film after being sowed by the sowing assembly 6 is further conveyed to the rear lower side of the frame 1 under the rotation of the transmission roller 307. When the soil covering film further travels backward between the two side ditching and soil covering assemblies 7, the ditching wheel 701 performs soil ditching and the soil turning wheel 703 covers the soil turned out of the ditch on the sowed soil covering film. At this time, the state of the soil covering film is that the seed-carrying adhesive film 303 is located below and contacts the soil, the film 304 is covered above the adhesive film 303, and the soil is further covered on the film 304 to realize overall compression of the soil covering film.

[0155] In a preferred embodiment, the precision sowing device further comprises a film compression assembly 8 arranged on the frame 1 and located behind the ditching and soil covering assembly 7. The film compression assembly 8 comprises two supports 801 arranged on the two sides of the rear part of the frame 1, a second mounting frame connected between the lower ends of the two supports 801, and a plurality of compression rollers 803 arranged in the second mounting frame.

[0156] In a preferred embodiment, the film compression assembly 8 further comprises a plurality of second transmission blocks and a second distance adjusting plate assembly 802. The plurality of second transmission blocks are slidingly arranged in the second mounting frame, and the plurality of compression rollers 803 are arranged in the second mounting frame by being connected to the plurality of second transmission blocks. The second distance adjusting plate assembly 802 is arranged in the second mounting frame and connected to the plurality of second transmission blocks to adjust the distribution distance of the plurality of compression rollers 803.

[0157] The film compression assembly 8 of the present application is used to further roll the soil covering film covered by the ditching and soil covering assembly 7. The film compression assembly 8 comprises two supports 801, a second mounting frame, a second distance adjusting plate assembly 802, and a plurality of compression rollers 803. The two supports 801 are arranged on the two sides of the frame 1 and located behind the ditching and soil covering assembly 7. The second mounting frame is connected to the lower ends of the two supports 801 to span the path of the soil covering film traveling backward. The plurality of compression rollers 803 are evenly arranged in the second mounting frame to roll the film 304 on the upper layer of the passing soil covering film. The second distance adjusting plate assembly 802 has the same structure as the first distance adjusting plate assembly and cooperates with the plurality of second transmission blocks in the second mounting frame to adjust the distance of the plurality of compression rollers 803 connected to the plurality of second transmission blocks.

[0158] The present application also provides a precision sowing method using the precision sowing device described above and comprising the following steps:

[0159] Step 1) The adhesive film 303 and the film 304 are attached by the film covering assembly 3 to form a soil covering film with adhesive function. The transmission roller part performs intermittent conveying of the soil covering film under the action of the motor disc assembly.

[0160] Step 2) During the conveying of the mulching film, the seed-throwing transmission assembly is switched to the vertical state to enable the seed-throwing assembly to suck seeds; when the conveying of the mulching film is stopped, the seed-throwing transmission assembly is switched to the horizontal state to enable the seed-throwing assembly to throw the sucked seeds to the adhering film 303 of the mulching film; and

[0161] Step 3) The transmission roller part further conveys the mulching film with seeds to cover the soil, and the seeds thrown to the mulching film are covered by the mulching film and interact with the soil;

[0162] Step 4) After the mulching film covers the soil, part of the soil is further covered on the mulching film by the furrowing and mulching assembly of the precision seeding device to realize the compaction of the mulching film, and the film mulching and seeding process is completed.

[0163] Compared with the prior art, the precision seeding device and method of the present application have at least the following significant technical advantages:

[0164] 1) The precision seeding technology of the present application can effectively improve the uniformity of the field distribution of crop plants, maximally reduce the competition for soil water and nutrients between plants, and greatly improve the yield.

[0165] 2) The low-position film mulching seeding method of the present application can effectively apply the seeds to the soil, thereby reducing the adverse effects of high-position seeding, realizing the uniformity of seeding particle distance and the consistency of seeding depth, improving the seeding efficiency, effectively avoiding seed damage, and achieving the precision seeding goal.

[0166] 3) The present application can be applied to the precision seeding of small-volume and light-mass seeds, such as rhizome vegetables white radish seeds or small-particle seeds with similar properties.

[0167] 4) The precision seeding device of the present application can adhere the mulching film to the film by the unwinding roller part of the film mulching assembly to form a mulching film with adhesion function; the intermittent conveying of the mulching film can be realized by the cooperation of the transmission roller part of the film mulching assembly and the motor disc assembly. Under the transmission action of the seed-throwing transmission assembly, the motor disc assembly and the connecting rod transmission assembly therebetween, the seed-throwing assembly at the end of the seed-throwing transmission assembly can uniformly throw the seeds to the adhering film side of the mulching film while the mulching film is intermittently conveyed. The film mulching and seeding process of the seeds is completed by the cooperation of various assemblies, and the automation level can be improved.

[0168] 5) The precision seeding device of the present application, after the soil film with seeds is conveyed backward and covered on the soil, can also be furrowed by the furrowing and soil covering assembly, and the soil film is further covered with soil to realize the compaction process of the film, and then the whole film seeding process of the seeds is completed.

[0169] Of course, the present application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications should all belong to the protection scope of the claims of the present application.

Claims

1. A precision seeding device characterized by, The utility model relates to a kind of machine frames and the film coating components of machine frame, including: A machine frame; A film coating component is arranged in the machine frame, and includes a pay-off roller part and a transmission roller part, the pay-off roller part can form a mulching film and is transported to the transmission roller part; A motor disc component is connected to the transmission roller part and drives its intermittent rotation; A seed throwing transmission component is arranged in the middle of the machine frame and located in the front side of the transmission roller part; A connecting rod transmission component is connected between the motor disc component and the seed throwing transmission component, when the transmission roller part is intermittently rotated, the connecting rod transmission component drives the seed throwing transmission component to switch between a horizontal state and a vertical state under the drive of the motor disc component;And A seed throwing component is arranged at the rear end of the seed throwing transmission component, the seed throwing component absorbs seeds in the vertical state, and seeds the mulching film on the transmission roller part in the horizontal state; Wherein, the seed throwing transmission component includes a fixed part, a frame part and a seed storage part, the fixed part is arranged in the machine frame, the front side of the frame part is rotatably connected to the fixed part, and the rear side is rotatably connected to the connecting rod transmission component, and the seed throwing component is arranged at the rear end of the frame part;The frame part can be switched between the horizontal state and the vertical state under the drive of the connecting rod transmission component, drives the seed throwing component to seed the mulching film in the horizontal state, and drives the seed throwing component to absorb seeds in the seed storage part in the vertical state; Wherein, the frame part includes two mounting strips, two sliding grooves and two sliding blocks, the two sliding grooves are opened in the front side of the two mounting strips, the two sliding blocks are arranged in the two sliding grooves and can be limited to slide inside the two sliding grooves, the two sliding blocks are rotatably connected to the fixed part, and the seed throwing component is arranged at the rear end of the two mounting strips;In the vertical state and the horizontal state, the two mounting strips can be switched between longitudinal and transverse states, when the mounting strip is in longitudinal state, the seed throwing component absorbs seeds in the seed storage part, and when the mounting strip is in transverse state, the seed throwing component seeds the mulching film.

2. The precision planting device of claim 1, wherein, The machine frame includes two side walls, two moving wheel parts and a pull rod, the two moving wheel parts are arranged below each side wall and are used for moving the machine frame, and the pull rod is connected to the front side of the two side walls.

3. The precision planting device of claim 1, wherein, It also includes a fixed auxiliary frame arranged inside the machine frame, the machine frame includes two side walls, the fixed auxiliary frame includes a bottom plate and two L-shaped frames, the bottom plate is arranged below the machine frame and between the two side walls, and the two L-shaped frames are arranged on both sides of the bottom plate.

4. The precision planting device of claim 1, wherein, The pay-off roller part of the film coating component is arranged in the machine frame, and includes two mounting plates and two pay-off rollers, the machine frame includes two side walls, the two mounting plates are correspondingly arranged on the rear of the two side walls, the two pay-off rollers are arranged between the two mounting plates and are distributed in an upper and lower manner, the pay-off roller arranged on the upper side is provided with a sticky film, and the pay-off roller arranged on the lower side is provided with a film, the sticky film and the film are combined and payed off in the direction of the transmission roller part to form the mulching film with sticky function, covering on the transmission roller part.

5. The precision planting device of claim 1, wherein, The transmission roller part of the film coating assembly is arranged inside the frame and in front of the unwinding roller part, and comprises a rotating shaft and a transmission roller. Two L-shaped frames are arranged on both sides of the inside of the frame. The rotating shaft is arranged through the shaft center of the transmission roller and is rotationally connected to the top ends of the two L-shaped frames.

6. The precision planting device of claim 1, wherein, The fixing part comprises two supporting rods. A bottom plate is arranged below the frame. The two supporting rods are symmetrically arranged on the front side of the bottom plate. The frame part is rotationally connected to the upper ends of the two supporting rods.

7. The precision planting device of claim 1, wherein, The seed storage part is a storage box. A bottom plate is arranged below the frame. The storage box is arranged on the bottom plate and is used for storing seeds.

8. The precision planting device of claim 1, wherein, The seed throwing assembly comprises a plurality of suction pipes, a conduit part, and a gas supply control part. The plurality of suction pipes are arranged at the rear end of the seed throwing transmission assembly. The gas supply control part is connected to the gas inlets of the plurality of suction pipes through the conduit part. In the vertical state, the gas supply control part sucks air to make the plurality of suction pipes suck seeds inward. In the horizontal state, the gas supply control part releases air to make the plurality of suction pipes throw seeds outward.

9. The precision planting device of claim 8, wherein, The seed throwing assembly further comprises a first mounting frame and a plurality of first transmission blocks. The first mounting frame is arranged at the rear end of the seed throwing transmission assembly. The plurality of first transmission blocks are slidingly arranged inside the first mounting frame. The plurality of suction pipes are arranged at the seed throwing transmission assembly by being arranged on the plurality of first transmission blocks.

10. The precision planting device of claim 9, wherein, The seed throwing assembly further comprises a first distance adjusting plate assembly. The first distance adjusting plate assembly comprises two first mounting blocks, two electric telescopic rods, a transmission plate, and a plurality of transmission columns. The two first mounting blocks are arranged at the rear end of the seed throwing transmission assembly and are located on the front side of the first mounting frame. The two electric telescopic rods are connected to the two first mounting blocks. The two ends of the transmission plate are connected to the telescopic ends of the two electric telescopic rods. A plurality of transmission grooves are symmetrically arranged in the shape of a splayed "8" on the transmission plate. One end of each transmission column is arranged in the transmission groove, and the other end is connected to the first transmission block.

11. The precision planting device of claim 8, wherein, The conduit part comprises a first conduit, a plurality of second conduits, and a plurality of control valves. One end of each second conduit is connected to the first conduit, and the other end is connected to the plurality of suction pipes. The control valves are arranged on the second conduits. The first conduit is connected to the gas supply control part.

12. The precision planting device of claim 8, wherein, The gas supply control part comprises a gas pump and a pressure sensor. The gas pump is arranged on the frame and is connected to the conduit part to supply gas thereto. The pressure sensor is arranged on the seed throwing transmission assembly and can monitor the state thereof. In the vertical state, the pressure sensor controls the gas pump to suck air. In the horizontal state, the pressure sensor controls the gas pump to release air.

13. The precision planting device of claim 1, wherein, The precision seeding device further comprises a liquid spraying assembly, which comprises a liquid storage tank, a piston tank, a transmission bar and a spraying head. The liquid storage tank is arranged at the lower part of the frame and is communicated with the piston tank through a first communication pipe. The piston tank is arranged at the front end of the seed throwing transmission assembly and is communicated with the spraying head through a second communication pipe. The spraying head is arranged at the rear end of the seed throwing transmission assembly. The seed throwing transmission assembly comprises two sliding grooves and two sliding blocks. The transmission bar is connected between the two sliding blocks. The piston plate in the piston tank is connected with the transmission bar through a piston rod. In the horizontal state or the vertical state, the two sliding blocks move in the sliding grooves away from the seed throwing assembly to drive the transmission bar to extrude the piston tank, so that the piston tank delivers liquid to the spraying head and sprays liquid outward.

14. The precision planting device of claim 13, wherein, The first communication pipe is provided with a first one-way valve facing the piston tank. The second communication pipe is provided with a second one-way valve facing the spraying head.

15. The precision planting device of claim 1, wherein, The motor disc assembly comprises a connecting shaft, a motor driving assembly and an intermittent rotation assembly. The frame is provided with two L-shaped frames on the inside of both sides. The connecting shaft is rotationally connected to the upper part of the L-shaped frame. The motor driving assembly is arranged on the L-shaped frame and can drive the connecting shaft to rotate. The intermittent rotation assembly is arranged on the connecting shaft and is driven by the connecting shaft to rotate intermittently. The transmission roller part is connected to the intermittent rotation assembly and rotates synchronously and intermittently under the driving of the intermittent rotation assembly.

16. The precision planting device of claim 15, wherein, The motor driving assembly comprises a micro motor and a transmission belt. The transmission belt is sleeved between the output shaft of the micro motor and the connecting shaft, so that the connecting shaft can rotate under the driving of the micro motor.

17. The precision planting device of claim 15, wherein, The intermittent rotation assembly comprises an incomplete transmission wheel, a lever and a transmission disc. The transmission roller part comprises a rotating shaft and a transmission roller. The rotating shaft is fixed between the transmission disc and the transmission roller and synchronously rotates them. The transmission disc comprises a plurality of arc-shaped grooves and U-shaped grooves staggered on the outer periphery of the disc body. The incomplete transmission wheel and the lever are fixed to the end of the connecting shaft. The incomplete transmission wheel has an outer circular arc segment matched with the arc-shaped groove of the transmission disc. The lever has a block matched with the U-shaped groove of the transmission disc. When the connecting shaft rotates, the incomplete transmission wheel and the lever will be combined with the transmission disc alternately, so that the transmission disc rotates intermittently.

18. The precision planting device of claim 1, wherein, The connecting rod transmission assembly comprises two installation rods, a transmission shaft, two first transmission rods, two second transmission rods, two third transmission rods and two fourth transmission rods. The frame is provided with a bottom plate below. The two installation rods are symmetrically arranged on the rear side of the bottom plate. The transmission shaft is rotatably arranged between the two installation rods. One end of the two first transmission rods is fixedly connected to the transmission shaft and located on the inner side wall of the installation rod. The other end of the two first transmission rods is rotationally connected to the seed throwing transmission assembly. One end of the two second transmission rods is fixedly connected to the transmission shaft and located on the outer side wall of the installation rod. The other end of the two second transmission rods is rotationally connected to one end of the two third transmission rods. The other end of the two third transmission rods is rotationally connected to one end of the two fourth transmission rods. The other end of the two fourth transmission rods is fixedly connected to the power output end of the motor disc assembly.

19. The precision planting device of claim 1, wherein, The precision seeding device further comprises two furrowing and covering components symmetrically arranged on both sides of the frame and located behind the transmission roller part, each of the furrowing and covering components comprises a driving part, a furrowing wheel and a soil turning wheel, the driving part is arranged on the frame, the furrowing wheel and the soil turning wheel are arranged on the power output end of the driving part, and the furrowing wheel is located outside the soil turning wheel.

20. The precision planting device of claim 19, wherein, The driving part comprises a driving motor and a mounting shaft, the driving motor is arranged on the frame, the mounting shaft is arranged on the output end of the driving motor, and the furrowing wheel and the soil turning wheel are arranged on the mounting shaft.

21. The precision planting device of claim 19, wherein, The precision seeding device further comprises a film pressing component arranged on the frame and located behind the furrowing and covering components, the film pressing component comprises two brackets, a second mounting frame and a plurality of pressing rollers, the two brackets are arranged on both sides of the rear part of the frame, the second mounting frame is connected between the lower ends of the two brackets, and the plurality of pressing rollers are arranged on the second mounting frame in a transverse distribution.

22. The precision planting device of claim 21, wherein, The film pressing component further comprises a plurality of second transmission blocks and a second distance adjusting plate assembly, the plurality of second transmission blocks are slidingly arranged in the second mounting frame, the plurality of pressing rollers are arranged in the second mounting frame by being connected to the plurality of second transmission blocks, and the second distance adjusting plate assembly is arranged in the second mounting frame and connected to the plurality of second transmission blocks to adjust the distribution distance of the plurality of pressing rollers.

23. A precision seeding method using the precision seeding device of any one of claims 1-22, characterized by, The method comprises the following steps: Step 1: a bonding film and a film are attached by the film covering component to form a covering film with bonding function, and the transmission roller part intermittently transports the covering film under the action of the motor disc assembly; Step 2: during the transportation of the covering film, the seeding transmission assembly is switched to the vertical state to enable the seeding assembly to perform the action of sucking seeds, and when the transportation of the covering film stops, the seeding transmission assembly is switched to the horizontal state to enable the seeding assembly to drop the sucked seeds onto the bonding film of the covering film; and Step 3: the transmission roller part further transports the seeded covering film backward to cover the soil, and the seeds dropped on the covering film are covered by the covering film and interact with the soil.

24. The precision seeding method of claim 23, wherein, The method further comprises step 4: the precision seeding device further comprises a furrowing and covering component, after the covering film covers the soil, part of the soil is further covered on the covering film by the action of the furrowing and covering component to realize the compaction of the covering film, and the film-seeding process of the seeds is completed.

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