Self-walking type precise seeding mechanism for planting organic leaf vegetables

Abstract

The invention relates to the technical field of organic vegetable sowing, in particular to a self-walking type precise sowing mechanism for leaf vegetable organic vegetable planting, which comprises a self-walking vehicle, a driving system arranged at the top of the self-walking vehicle, a group of sowing devices and a fertilizer box. According to the self-walking type precise sowing mechanism for leaf vegetable organic vegetable planting, sowing and fertilization are synchronously completed during advancing of the self-walking vehicle, when a rotating ring carries a sowing groove with quantitative seeds to the lowermost end of a sleeve, pressurized liquid fertilizer in a fertilizer box flushes the seeds in the groove at a high speed through a water pipe, and the seeds are precisely injected into a planting ditch dug by a soil breaking plough; the two traditional procedures of sowing and fertilizing are combined into a single action, mechanical operation times and energy consumption are reduced, in addition, liquid fertilizer synchronously wraps seeds to directly reach root systems, surface volatilization and loss of the fertilizer are greatly reduced, and the nutrient utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of organic vegetable sowing, in particular to a self-propelled precision sowing mechanism for planting leafy organic vegetables. Background Art

[0002] Precision seeding is the core technology for improving the yield and quality of leafy organic vegetables. It optimizes resource utilization by scientifically controlling the sowing density, depth and uniformity. A spot seeder is usually used to ensure consistent seed spacing and reduce thinning losses. Combined with soil moisture and climate data, the appropriate sowing period is selected to promote uniform seedling emergence.

[0003] The patent application number CN202510004372.X discloses a beet sowing method and device, including a mobile unit, on which a seed conveying unit and a sowing unit are provided. The seed conveying unit is used to store and quantitatively convey beet seeds, and the sowing unit is used to sow the seeds conveyed by the seed conveying unit. The seed conveying unit uses a unique conveying component design to accurately adjust the size of the inoculation hole and the discharge hole according to the type of beet seeds. In conjunction with the movement of the cylinder-driven feeding plate, quantitative screening and conveying of seeds can be achieved, thereby avoiding seed waste, ensuring uniform beet planting density on each piece of land, and providing good spatial conditions for the growth of beets.

[0004] However, existing equipment generally has process fragmentation and anti-blocking defects. Traditional machinery needs to complete trenching, sowing, fertilizing and covering soil in steps, resulting in multiple field operations, high energy consumption and severe soil compaction. Fertilization is mostly carried out by broadcasting or furrowing. The fertilizer is exposed to the surface, causing volatilization and loss, and there is a lack of liquid fertilizer and seed deep burial mechanism, resulting in poor seedling uniformity. At the same time, the seed storage device has no active anti-blocking design, and wet seeds are easy to stick and get stuck. Small-particle leafy vegetable seeds (such as rapeseed and mustard) are frequently blocked, forcing the installation of vibrators or additional air pumps, which not only increases power consumption but also makes it difficult to accurately control the seeding amount, affecting the demand for refined sowing.

[0005] In view of this, we propose a self-propelled precision seeding mechanism for growing leafy organic vegetables. Summary of the Invention

[0006] The purpose of the present invention is to provide a self-propelled precision seeding mechanism for growing leafy organic vegetables, which solves the problems raised in the above-mentioned background technology by driving a rotating ring to rotate in a sleeve through a driving system.

[0007] To achieve the above object, the present invention provides the following technical solutions: A self-propelled precision seeding mechanism for growing leafy organic vegetables, comprising a self-propelled vehicle, a drive system disposed on top of the vehicle, a set of seeding devices, and a fertilizer box; The drive system includes an external frame, a reciprocating screw rotatably connected to the internal frame of the external frame, a connecting shaft arranged below the reciprocating screw and rotating therewith, and two piston plates sleeved on the outside of the reciprocating screw. The front and rear outer walls of the external frame are respectively provided with an air inlet valve and an air outlet valve; This device rotates the reciprocating screw to drive two piston plates to reciprocate left and right outside the device, pressing the external gas into the fertilizer box to increase the pressure; The sowing device includes a sleeve, an external gear arranged inside the sleeve, a rotating ring rotating inside the sleeve, and a seed storage box arranged above the rotating ring. The groove of the rotating ring is integrally formed with outer ring teeth that mesh with the external gear. The ring walls on both sides of the groove are provided with a plurality of sowing grooves connected to the inner ring, and exhaust holes are provided next to the sowing grooves. The connecting shaft of this arrangement rotates, driving the external gear sleeved on its end to rotate, and the rotating ring is driven to rotate in the sleeve by meshing the outer ring teeth of the rotating ring. When the sowing groove on the rotating ring passes the bottom of the seed storage box as it rotates, vegetable seeds fall into the groove in a fixed amount. In addition, the top of the fertilizer box is connected to the exhaust hole through a pipe, and compressed gas is sprayed out through the exhaust hole to disturb the seeds and prevent blockage. When the sowing groove full of seeds rotates to the bottom of the sleeve, the bottom of the fertilizer box is connected to the sowing groove through a pipe, and liquid fertilizer is flushed out through the sowing groove, flushing the seeds into the planting field.

[0008] In the technical solution of the present invention, the self-propelled vehicle also includes a frame, running wheels arranged on both sides of the frame, a soil-breaking plow fixedly connected to the front end of the frame by bolts, two soil-covering wheels fixedly connected to the bottom surface of the rear end of the frame by bolts, and a pressure roller hinged to the rear end bracket of the frame. A rotating shaft rotatably connected to the bottom of the frame is clamped between the two running wheels.

[0009] This setting provides the prerequisites for sowing organic vegetable seeds through the cooperation of the soil-breaking plow, covering wheel and pressure roller.

[0010] In the technical solution of the present invention, the drive system also includes a motor fixedly connected to the outer wall of the external frame by bolts, two pulleys respectively sleeved between the reciprocating screw and the connecting shaft, a synchronous belt sleeved between the two pulleys, two chain disks respectively clamped and fixed to the end of the reciprocating screw and the outside of the rotating shaft between the two walking wheels, and a transmission chain sleeved between the two chain disks.

[0011] In the technical solution of the present invention, the reciprocating screw is coaxially connected to the motor, two independent bidirectional threaded grooves are provided at both ends of the outer wall of the reciprocating screw, the piston plate is slidably connected to the inside of the external frame, and the air inlet valve and the air outlet valve of the external frame are both installed near the edge of the external frame.

[0012] The above arrangement transmits the power of the motor through the cooperation of the chain plate, the transmission chain, the pulley and the synchronous belt, thereby reducing the investment in additional drive equipment.

[0013] In the technical solution of the present invention, the sowing device also includes a cover plate clamped to the outside of the sleeve, a convex tube is integrally formed below the outer wall of the cover plate, and an air inlet hole that passes through the inside and outside is opened above the outer wall of the cover plate.

[0014] The cover plate is provided to ensure the airtightness of the interior of the sleeve and allows the liquid fertilizer and gas in the fertilizer box to enter the interior of the sleeve through the convex tube and the air inlet hole respectively.

[0015] In the technical solution of the present invention, the front end outer wall of the sleeve is integrally formed with an outer convex bin, the interior of the sleeve is integrally formed with a fixed ring body that is adapted to the internal size of the rotating ring, the sleeve is integrally formed with a water pipe on the bottom surface of the inner wall of the fixed ring body, the position of the water pipe corresponds to the convex pipe and the two water distribution pipes at its bottom end are connected to the outer wall of the fixed ring body, the top of the outer wall of the sleeve is integrally formed with a seed separation funnel, the bottom of the outer wall of the sleeve is integrally formed with two seed outlet pipes, and the top of the outer wall of the sleeve is provided with an opening corresponding to the air inlet and of a corresponding size.

[0016] In the technical solution of the present invention, the external gear is rotatably connected to the interior of the external convex housing, and the external gear is fixedly connected to the end of the connecting shaft via a bayonet pin.

[0017] In the technical solution of the present invention, the rotating ring is rotatably connected to the inside of the sleeve, and a number of through holes connected to the exhaust holes are opened on the outer walls of the left and right ends of the rotating ring. The size of the through holes is adapted to the size of the air inlet holes, and the size of the circular hole connecting the sowing groove and the inner wall of the rotating ring is adapted to the size of the bottom pipe opening of the water pipe.

[0018] The above setting uses this stream of fertilizer liquid to accurately flush the vegetable seeds in the trough and directly flush them into the planting groove below which has been dug by the soil-breaking plow and has not yet been completely covered by the covering wheel, completing the precise simultaneous sowing and fertilizing operations.

[0019] In the technical solution of the present invention, the fertilizer box includes a box body, two water inlet pipes connected to the bottom of the left and right sides of the box body, two exhaust pipes connected to the top of the left and right sides of the box body, and two air inlet pipes inserted in the middle of the box body.

[0020] In the technical solution of the present invention, the front end pipe mouth of the water inlet pipe is clamped and fixed to the convex pipe, the front end pipe mouth of the exhaust pipe is clamped and fixed to the outside of the air inlet hole and the circular hole on the outer wall of the sleeve, and the front end pipe mouth of the air inlet pipe is clamped and fixed to the outside of the air outlet valve at the end of the frame.

[0021] The above arrangement enables the sowing device to disturb the seeds by the air inlet and flush the vegetable seeds by the fertilizer liquid flow through the exhaust pipe and the water inlet pipe.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. This self-propelled precision seeding mechanism for growing leafy organic vegetables simultaneously completes seeding and fertilizing while the self-propelled vehicle is moving. When the sowing trough carrying a fixed amount of seeds on a rotating ring rotates to the lowest end of the sleeve, pressurized liquid fertilizer in the fertilizer tank quickly flushes the seeds in the trough through a water pipe and is precisely injected into the planting furrow excavated by the soil-breaking plow. This combines the traditional sowing and fertilizing processes into a single action, reducing the number of mechanical operations and energy consumption. In addition, the liquid fertilizer simultaneously wraps around the seeds and reaches the root system, significantly reducing surface fertilizer volatilization and loss, and improving nutrient utilization. At the same time, the impact force of the liquid flow helps the seeds sink to the ideal depth. Combined with the soil-covering wheel, instant soil covering increases the seedling emergence rate, achieving dual optimization of planting efficiency and resource utilization.

[0023] 2. This self-propelled precision seeding mechanism for growing leafy organic vegetables has a system where, when the seeding trough moves to the bottom of the seed storage box to take seeds, the compressed gas in the fertilizer box is sprayed directionally onto the seed pile through the exhaust hole, effectively destroying seed adhesion and accumulation. This disturbance action is strictly synchronized with the seed taking position to ensure that it only acts on the current seed taking area each time, reducing the risk of blockage by wet or small-particle leafy vegetable seeds, while maintaining the error in the seed taking amount for a single trough. The entire anti-blocking process does not require an additional power source, but is achieved only through the reuse of the piston plate gas booster system to solve the problem of seed blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the self-propelled vehicle in the present invention; Figure 3 It is a schematic cross-sectional view of the structure of the drive system of the present invention; Figure 4 Schematic diagram of the structure of the sowing device in the present invention; Figure 5 It is a partial structural cross-sectional diagram of the sowing device of the present invention; Figure 6 It is a schematic cross-sectional view of the structure of the sleeve in the present invention; Figure 7 It is a schematic cross-sectional view of the structure of the rotating ring in the present invention; Figure 8 Schematic diagram of the structure of the seed storage box of the present invention; Figure 9 It is a structural diagram of the fertilizer box in the present invention; Description of reference numerals: 100, self-propelled vehicle; 110, vehicle frame; 120, traveling wheels; 130, soil-breaking plow; 140, soil-covering wheels; 150, pressure roller; 200, drive system; 210, external frame; 220, motor; 230, reciprocating screw; 240, pulley; 250, synchronous belt; 260, connecting shaft; 270, piston plate; 280, chain plate; 290, transmission chain; 300, sowing device; 310, cover plate; 311, convex tube; 312, air inlet; 320, sleeve; 321, outer convex chamber; 322, water pipe; 323, seed sorting funnel; 324, seed outlet pipe; 330, outer gear; 340, rotating ring; 341, outer ring gear; 342, sowing slot; 343, exhaust hole; 344, through hole; 350, seed storage box; 400, fertilizer box; 410, box body; 420, water inlet pipe; 430, exhaust pipe; 440, air inlet pipe. DETAILED DESCRIPTION

[0025] The following will provide a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] Please refer to the accompanying drawings. This embodiment provides a technical solution: See also Figure 1-Figure 2 As shown, a self-propelled precision seeding mechanism for growing leafy organic vegetables includes a self-propelled vehicle 100, a drive system 200 disposed on the top of the self-propelled vehicle 100, a set of seeding devices 300, and a fertilizer box 400; In this embodiment, the self-propelled vehicle 100 also includes a frame 110, running wheels 120 arranged on both sides of the frame 110, a soil-breaking plow 130 fixedly connected to the front end of the frame 110 by bolts, two covering wheels 140 fixedly connected to the bottom surface of the rear end of the frame 110 by bolts, and a pressure roller 150 hinged to the rear end bracket of the frame 110. A rotating shaft rotatably connected to the bottom of the frame 110 is clamped between the two running wheels 120.

[0027] Furthermore, when the self-propelled vehicle 100 is moving, the front soil-breaking plow 130 digs a sowing groove on the planting ground, and the covering wheel 140 following it pushes the soil back to cover the sown groove, and the pressure roller 150 compacts the soil. This setting provides the prerequisite for sowing organic vegetable seeds through the cooperation of the soil-breaking plow 130, the covering wheel 140 and the pressure roller 150.

[0028] See also Figure 3As shown, in this embodiment, the drive system 200 includes an external frame 210, a reciprocating screw 230 rotatably connected to the internal frame of the external frame 210, a connecting shaft 260 arranged below the reciprocating screw 230 and rotating therewith, and two piston plates 270 sleeved on the outside of the reciprocating screw 230.

[0029] Specifically, the drive system 200 also includes a motor 220 fixedly connected to the outer wall of the external frame 210 by bolts, two pulleys 240 respectively sleeved between the reciprocating screw 230 and the connecting shaft 260, a synchronous belt 250 sleeved between the two pulleys 240, two chain disks 280 respectively clamped and fixed to the end of the reciprocating screw 230 and the outside of the rotating shaft between the two walking wheels 120, and a transmission chain 290 sleeved between the two chain disks 280.

[0030] Furthermore, the reciprocating screw 230 is coaxially connected to the motor 220, and two independent bidirectional threaded grooves are provided at both ends of the outer wall of the reciprocating screw 230. The piston plate 270 is slidably connected to the inside of the external frame 210, and the air inlet valve and the air outlet valve of the external frame 210 are both installed near the edge of the external frame 210.

[0031] Furthermore, the motor 220 in the drive system 200 is started, and the operation of the motor 220 drives the reciprocating screw 230 to rotate. The rotation of the reciprocating screw 230 causes the chain plate 280 installed at its end to rotate, and then drives the rotating shaft connecting the two walking wheels 120 to rotate through the transmission chain 290, thereby driving the entire self-propelled vehicle 100 to move in the planting field.

[0032] Furthermore, an air inlet valve and an air outlet valve are respectively provided on the outer walls of the front and rear ends of the external frame 210. When the reciprocating screw 230 rotates, it drives the two piston plates 270 to reciprocate left and right outside thereof, pressing the external gas into the fertilizer box 400 to increase the pressure.

[0033] Furthermore, the pulley 240, mounted on the outer side of the middle portion of the reciprocating screw 230, rotates, which in turn causes the pulley 240 below and the connecting shaft 260 to rotate synchronously via the timing belt 250. This arrangement transmits the power of the motor 220 through the coordination of the chain plate 280, the transmission chain 290, the pulley 240, and the timing belt 250, thereby reducing the investment in additional drive equipment.

[0034] See also Figure 4-Figure 5 As shown, in this embodiment, the sowing device 300 includes a sleeve 320 , an external gear 330 disposed inside the sleeve 320 , a rotating ring 340 rotating inside the sleeve 320 , and a seed storage box 350 disposed above the rotating ring 340 .

[0035] Specifically, the seeding device 300 further includes a cover plate 310 snapped onto the outside of the sleeve 320 , a convex tube 311 is integrally formed below the outer wall of the cover plate 310 , and an air inlet 312 that passes through the inner and outer walls is opened above the outer wall of the cover plate 310 .

[0036] Furthermore, the cover plate 310 ensures the airtightness of the interior of the sleeve 320 and allows the liquid fertilizer and gas in the fertilizer box 400 to enter the interior of the sleeve 320 through the protruding pipe 311 and the air inlet 312 respectively.

[0037] See also Figure 4-Figure 8 As shown, in this embodiment, the front end outer wall of the sleeve 320 is integrally formed with an outer convex bin 321, the interior of the sleeve 320 is integrally formed with a fixed ring body that is adapted to the internal size of the rotating ring 340, and the sleeve 320 is integrally formed with a water pipe 322 on the bottom surface of the inner wall of the fixed ring body. The position of the water pipe 322 corresponds to the convex pipe 311 and the two water distribution pipes at its bottom end are connected to the outer wall of the fixed ring body. The top of the outer wall of the sleeve 320 is integrally formed with a seed distribution funnel 323, and the bottom of the outer wall of the sleeve 320 is integrally formed with two seed outlet pipes 324. The top of the outer wall of the sleeve 320 is provided with an opening corresponding to the air inlet hole 312 and of a corresponding size.

[0038] Specifically, the external gear 330 is rotatably connected to the interior of the outer convex housing 321 , and the external gear 330 is fixedly connected to the end of the connecting shaft 260 via a bayonet pin.

[0039] Furthermore, outer ring teeth 341 meshing with the outer gear 330 are integrally formed in the groove of the rotating ring 340 , and a plurality of sowing grooves 342 communicating with the inner ring are formed on the ring walls on both sides of the groove, and exhaust holes 343 are provided next to the sowing grooves 342 .

[0040] Furthermore, the rotating ring 340 is rotatably connected to the interior of the sleeve 320, and a number of through holes 344 connected to the exhaust holes 343 are opened on the outer walls of the left and right ends of the rotating ring 340. The size of the through holes 344 is adapted to the size of the air inlet 312, and the size of the circular hole connecting the sowing groove 342 and the inner wall of the rotating ring 340 is adapted to the size of the bottom pipe opening of the water pipe 322. A filter is provided on the outer hole wall of the circular hole connecting the sowing groove 342 and the inner wall of the rotating ring 340.

[0041] Furthermore, the outer convex chamber 321 on the sleeve 320 provides a rotation range for the outer gear 330, and the water pipe 322 allows the liquid fertilizer entering through the convex pipe 311 to enter the sowing groove 342 of the rotating ring 340, and the seed sorting funnel 323 provides a clamping platform for the seed box 350, allowing the seeds in the seed box 350 to fall into the sowing groove 342 through the double channels.

[0042] Furthermore, the connecting shaft 260 rotates, driving the outer gear 330 sleeved at its end to rotate, and the outer ring teeth 341 of the meshing rotating ring 340 are used to drive the rotating ring 340 to rotate in the sleeve 320. When the sowing groove 342 on the rotating ring 340 passes the bottom of the seed storage box 350 as it rotates, the vegetable seeds fall into the groove in a quantitative manner. In addition, the top of the fertilizer box 400 is connected to the exhaust hole 343 through a pipe, and compressed gas is sprayed out through the exhaust hole 343 to disturb the seeds and prevent blockage. When the sowing groove 342 full of seeds rotates to the bottom of the sleeve 320, the bottom of the fertilizer box 400 is connected to the sowing groove 342 through a pipe, and liquid fertilizer rushes out through the sowing groove 342, flushing the seeds into the planting ground. This setting uses this fertilizer liquid flow to accurately flush out the vegetable seeds in the groove and directly flush them into the planting groove below that has been dug by the soil-breaking plow 130 and has not yet been completely covered by the covering wheel 140, completing the precise sowing and fertilizing operations simultaneously.

[0043] See also Figure 9 As shown, in this embodiment, the fertilizer box 400 includes a box body 410, two water inlet pipes 420 connected to the bottom of the left and right sides of the box body 410, two exhaust pipes 430 connected to the top of the left and right sides of the box body 410, and two air inlet pipes 440 inserted in the middle of the box body 410.

[0044] Specifically, the front end pipe mouth of the water inlet pipe 420 is clamped and fixed to the convex pipe 311, the front end pipe mouth of the exhaust pipe 430 is clamped and fixed to the outside of the air inlet hole 312 and the circular hole on the outer wall of the sleeve 320, and the front end pipe mouth of the air inlet pipe 440 is clamped and fixed to the outside of the air outlet valve at the end of the frame.

[0045] Furthermore, the box body 410 is used to store liquid fertilizer, and the gas discharged from the air outlet valve of the external frame 210 is introduced into the interior of the box body 410 through the air inlet pipe 440, so that the internal gas can be discharged from the water inlet pipe 420 and the exhaust pipe 430 respectively. This setting allows the sowing device 300 to complete the disturbance of the seeds by the air inlet hole 312 and the flushing of the vegetable seeds by the fertilizer liquid flow through the exhaust pipe 430 and the water inlet pipe 420.

[0046] Finally, it should be noted that the motor 220 involved in the present invention is a universal standard part or a component known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, the motor 220 is connected to the external power supply through a wire. The specific connection method should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection methods are all well-known technologies in this field.

[0047] When using the self-propelled precision seeding mechanism for growing leafy organic vegetables of the present invention, first, the vegetable seeds to be sown are placed inside the seed storage box 350, and liquid fertilizer is poured into the box body 410; Next, the motor 220 in the drive system 200 is started. The motor 220 drives the reciprocating screw 230 to rotate. The rotation of the reciprocating screw 230 rotates the chain plate 280 installed at its end, which in turn drives the rotating shaft connecting the two running wheels 120 to rotate through the transmission chain 290, thereby driving the entire self-propelled vehicle 100 to move in the planting field. During the movement, the soil-breaking plow 130 at the front digs a sowing furrow in the planting field, and the covering wheel 140 following it pushes the soil back to cover the sown furrow. At the same time, during the rotation of the reciprocating screw 230, the two piston plates 270 thereon are driven to perform left and right reciprocating motion within the square frame structure of the external frame 210. The movement of the piston plates 270 continuously draws in and compresses external air through the air inlet valve provided at the front end and the air outlet valve provided at the rear end of the external frame 210, and finally presses the air into the fertilizer box 400 through the air inlet pipe 440, thereby increasing the internal air pressure of the fertilizer box 400. During this process, the pulley 240 sleeved on the outer side of the middle of the reciprocating screw 230 rotates, and through the synchronous belt 250, the pulley 240 below and the connecting shaft 260 rotate synchronously; When the connecting shaft 260 rotates, the outer gear 330 connected thereto is driven to rotate. The outer gear 330 engages with the outer ring teeth 341 on the rotating ring 340, driving the rotating ring 340 to rotate within the sleeve 320. The rotation of the rotating ring 340 drives the sowing grooves 342 on it to pass through the bottom of the seed storage box 350 in sequence. When the sowing groove 342 rotates to the position directly below the seed storage box 350, the vegetable seeds in the seed storage box 350 fall into the sowing groove 342 in a quantitative manner, and the compressed gas in the fertilizer box 400 enters the through hole 344 of the rotating ring 340 through the exhaust pipe 430, and is then ejected from the exhaust hole 343 on the rotating ring 340, disturbing the seeds at the bottom of the seed storage box 350, effectively preventing seed blockage and ensuring reliable quantitative seed removal; Subsequently, the rotating ring 340 continues to rotate, and when the sowing trough 342 full of seeds rotates to the bottom of the sleeve 320, the liquid fertilizer in the fertilizer box 400 enters the water pipe 322 through the water inlet pipe 420, and is then flushed downward by the sowing trough 342. This stream of fertilizer liquid accurately flushes out the vegetable seeds in the trough and directly flushes into the planting groove below that has been dug by the soil-breaking plow 130 and has not yet been completely covered by the covering wheel 140, completing the precise sowing and fertilizing operations at the same time.

[0048] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to make and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the description and its equivalents.

Claims

1. A self-propelled precision seeding mechanism for growing leafy organic vegetables, comprising a self-propelled vehicle, a drive system mounted on top of the vehicle, a seeding device, and a fertilizer tank; Its characteristics are: The drive system includes an external frame, a reciprocating screw rotatably connected to an internal frame of the external frame, a connecting shaft arranged below the reciprocating screw and rotating therewith, and two piston plates sleeved on the outside of the reciprocating screw. The front and rear outer walls of the external frame are respectively provided with an air inlet valve and an air outlet valve. When the reciprocating screw rotates, the two piston plates are driven to reciprocate left and right outside the external frame, thereby pressing the external gas into the fertilizer box to increase the pressure. The sowing device includes a sleeve, an external gear arranged inside the sleeve, a rotating ring rotating inside the sleeve, and a seed storage box arranged above the rotating ring. The groove of the rotating ring is integrally formed with outer ring teeth that mesh with the external gear. The ring walls on both sides of the groove are provided with a plurality of sowing grooves connected to the inner ring, and exhaust holes are provided next to the sowing grooves. The connecting shaft rotates, driving the external gear sleeved on its end to rotate, and the rotating ring is driven to rotate in the sleeve by meshing the outer ring teeth of the rotating ring. When the sowing groove on the rotating ring passes the bottom of the seed storage box as it rotates, vegetable seeds fall into the groove in a fixed amount. In addition, the top of the fertilizer box is connected to the exhaust hole through a pipe, and compressed gas is sprayed out through the exhaust hole to disturb the seeds and prevent blockage. When the sowing groove full of seeds rotates to the bottom of the sleeve, the bottom of the fertilizer box is connected to the sowing groove through a pipe, and liquid fertilizer is flushed out through the sowing groove, flushing the seeds into the planting field.

2. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 1, characterized in that: The self-propelled vehicle also includes a frame, running wheels arranged on both sides of the frame, a soil-breaking plow fixedly connected to the front end of the frame by bolts, two soil-covering wheels fixedly connected to the bottom surface of the rear end of the frame by bolts, and a pressure roller hinged to the rear end bracket of the frame, and a rotating shaft rotatably connected to the bottom of the frame is clamped between the two running wheels.

3. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 1, characterized in that: The drive system also includes a motor fixedly connected to the outer wall of the external frame by bolts, two pulleys respectively sleeved between the reciprocating screw and the connecting shaft, a synchronous belt sleeved between the two pulleys, two chain disks respectively clamped and fixed to the end of the reciprocating screw and the outside of the rotating shaft between the two walking wheels, and a transmission chain sleeved between the two chain disks.

4. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 3, characterized in that: The reciprocating screw is coaxially connected to the motor, and two independent bidirectional thread grooves are provided at both ends of the outer wall of the reciprocating screw. The piston plate is slidably connected to the inside of the external frame, and the air inlet valve and the air outlet valve of the external frame are both installed near the edge of the external frame.

5. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 1, characterized in that: The sowing device also includes a cover plate clamped on the outer side of the sleeve, a convex tube is integrally formed on the lower side of the outer wall of the cover plate, and an air inlet hole that passes through the inside and outside is opened on the upper side of the outer wall of the cover plate.

6. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 1, characterized in that: The front end outer wall of the sleeve is integrally formed with an outer convex bin, the interior of the sleeve is integrally formed with a fixed ring body that is adapted to the internal size of the rotating ring, the sleeve is integrally formed with a water pipe on the bottom surface of the inner wall of the fixed ring body, the position of the water pipe corresponds to the convex pipe and the two water distribution pipes at its bottom end are connected to the outer wall of the fixed ring body, the top of the outer wall of the sleeve is integrally formed with a seed separation funnel, the bottom of the outer wall of the sleeve is integrally formed with two seed outlet pipes, and the top of the outer wall of the sleeve is provided with an opening corresponding to the air inlet and of a corresponding size.

7. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 1, characterized in that: The external gear is rotatably connected to the interior of the external convex housing, and the external gear is fixedly connected to the end of the connecting shaft through a bayonet pin.

8. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 6, characterized in that: The rotating ring is rotatably connected to the inside of the sleeve, and a plurality of through holes connected to the exhaust holes are opened on the outer walls of the left and right ends of the rotating ring. The size of the through holes is adapted to the size of the air inlet holes, and the size of the circular hole connected to the sowing groove and the inner wall of the rotating ring is adapted to the size of the bottom pipe opening of the water pipe.

9. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 5, characterized in that: The fertilizer box comprises a box body, two water inlet pipes connected to the bottoms of the left and right sides of the box body, two exhaust pipes connected to the tops of the left and right sides of the box body, and two air inlet pipes plugged into the middle of the box body.

10. The self-propelled precision seeding mechanism for growing leafy organic vegetables according to claim 9, characterized in that: The front end pipe mouth of the water inlet pipe is clamped and fixed to the convex pipe, the front end pipe mouth of the exhaust pipe is clamped and fixed to the outside of the air inlet hole and the circular hole on the outer wall of the sleeve, and the front end pipe mouth of the air inlet pipe is clamped and fixed to the outside of the air outlet valve at the end of the square frame.

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