Water and fertilizer accurate direct injection and seeding all-in-one machine

Abstract

The invention discloses a water and fertilizer accurate direct injection and seeding all-in-one machine, which belongs to the technical field of agricultural machinery, and comprises a frame body, walking wheels are rotatably connected to four corners of the bottom of the frame body, a connecting mechanism is fixedly connected to the front end of the frame body, and the connecting mechanism is used for connecting a driving device; a rotary tillage assembly, a water and fertilizer assembly and a dibble seeding assembly are sequentially mounted on the frame body from front to back; the single-time water and fertilizer discharge amount of the water and fertilizer assembly and the single-time sowing amount of the dibble seeding assembly are fixed; the water and fertilizer assembly outlet and the dibble seeding assembly outlet are adjacently and fixedly connected to a lifting plate, lifting rods are fixedly connected to the two ends of the lifting plate, and the tops of the lifting rods are fixedly connected to the frame body; the lifting rod drives the lifting plate to ascend and descend, so that the water and fertilizer assembly discharge port and the dibble seeding assembly discharge port enter the in-soil seeding position at the same time, and seeding and direct water and fertilizer injection are completed at the same time. According to the invention, the functions of rotary tillage, precise seeding and precise direct injection of water and fertilizer are integrated, and the purposes of shortening the operation period, reducing water and fertilizer loss and relieving water pressure are achieved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, and in particular relates to an integrated machine for precise direct injection of water and fertilizer into seeding. Background Technology

[0002] With the acceleration of agricultural modernization, precision agriculture has become a key path to overcome resource constraints and improve production efficiency. The quality of sowing and water and fertilizer supply during the crop seedling stage directly determines the seed germination rate, seedling growth, and subsequent yield. In my country's widely cultivated areas, including dryland and water-scarce irrigated land, summer is the golden period for crop sowing, but it also faces the dual challenges of water shortage and high operational efficiency requirements. The shortcomings of traditional planting methods and existing agricultural equipment are becoming increasingly prominent, seriously restricting the improvement of agricultural production quality and efficiency.

[0003] Traditional planting methods employ a step-by-step approach of "fertilization-sowing-irrigation," which is not only fragmented but also requires 2-3 pieces of equipment and 3-4 days to complete the work on 1 hectare of land. This results in high labor intensity, extremely low efficiency, and significant time differences between each step, leading to insufficient water and fertilizer supply during the critical seed germination period, causing seedlings to miss the optimal growth window. Furthermore, in the high temperatures of summer, traditional flood irrigation and sprinkler irrigation methods suffer from water loss rates exceeding 50%, making it difficult to accurately deliver water and fertilizer to the 5-10cm seed germination layer. Dryland areas face the risk of water shortage and seedling death, while irrigated areas experience both competition for water and waste, creating a resource misallocation dilemma. Regarding fertilizer application, traditional solid fertilizers are easily washed away by summer rainstorms, resulting in a utilization rate of only 30%-40%. This increases production costs and causes ecological problems such as soil compaction and water pollution. Even when liquid fertilizers are used, they are mostly applied manually, resulting in uneven dosage and inability to penetrate the soil deeply, failing to meet the targeted nutrient needs of seedlings.

[0004] Therefore, there is an urgent need for an integrated device that can combine rotary tillage, precision seeding, and precise direct water and fertilizer injection to shorten the operation cycle, reduce water and fertilizer loss, alleviate water pressure, and help agricultural production achieve water conservation, efficiency improvement, quality improvement, and income increase. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this invention proposes an integrated machine for precise direct injection of water and fertilizer into seeding.

[0006] To achieve the above objectives, the present invention provides a precision water and fertilizer direct injection seeding integrated machine, comprising: a frame, with four rotatable wheels connected to the bottom corners of the frame, and a connecting mechanism fixed to the front end of the frame for connecting a drive device; a rotary tillage component, a water and fertilizer component, and a seeding component are sequentially installed on the frame from front to back; the water and fertilizer component discharges a fixed amount of water and fertilizer per cycle, and the seeding component sows a fixed amount of seeds per cycle, and the water and fertilizer discharge of the water and fertilizer component and the seeding of the seeding component are controlled by a controller; the outlets of the water and fertilizer component and the outlet of the seeding component are adjacently fixed to a lifting plate, and lifting rods are fixed to both ends of the lifting plate, with the top of the lifting rods fixed to the frame; the lifting rods drive the lifting plate to rise and fall, so that the outlets of the water and fertilizer component and the outlet of the seeding component simultaneously enter the sowing position in the soil, and simultaneously complete the sowing and direct water and fertilizer injection.

[0007] Optionally, the water and fertilizer assembly includes a storage tank, which is fixedly connected to the frame. The top of the storage tank has a water and fertilizer inlet, and the bottom of the storage tank is connected to a first flexible pipe. The first flexible pipe passes through the bottom surface of the frame and is connected to a direct injection pipe. The top of the direct injection pipe is fixedly connected to the lifting plate, and the bottom passes through the lifting plate downwards.

[0008] Optionally, the direct injection pipe is equipped with a solenoid valve and a check valve. The solenoid valve is controlled by the controller, and the controller controls the amount of water and fertilizer discharged in a single operation by controlling the opening time of the solenoid valve.

[0009] Optionally, a stirring motor is fixedly connected to the side wall of the storage tank, and a stirring shaft is drivenly connected to the output end of the stirring motor. The stirring shaft is rotatably connected inside the storage tank, and several stirring rods are fixedly connected to the stirring shaft circumferentially.

[0010] Optionally, the seeding assembly includes a seed box fixed to the frame, a seeding tray connected to the bottom of the seed box, a second flexible tube connected to the bottom of the seeding tray, a seeding tube connected to the second flexible tube, the top of the seeding tube fixed to the lifting plate, and the bottom penetrating the lifting plate downwards. The seeding tray allows a limited number of seeds to pass through at a time.

[0011] Optionally, the seeding disc includes a housing and a turntable, the turntable being rotatably connected to the housing, and the turntable having a plurality of limiting grooves evenly distributed around its circumference. When the limiting groove is rotated to the top, it uniquely corresponds to the outlet of the seed box, and when it is rotated to the bottom, it uniquely corresponds to the inlet of the second flexible tube. The turntable is driven to rotate by a stepper motor.

[0012] Optionally, the bottom of the seeding tube is hinged with an end cap, and a pull rope is fixed to one side of the end cap inside the seeding tube. The other end of the pull rope passes through the seeding tube and is fixed to the frame. When the lifting rod drives the seeding tube to descend, the pull rope is pulled, causing the end cap to engage with the end of the seeding tube. When the lifting rod drives the seeding tube to rise, the pull rope is affected by the gravity of the end cap, causing the end cap to separate from the end of the seeding tube.

[0013] Optionally, the top of the pull rope and the top of the lifting rod are both fixed to the adjusting plate, the top of the adjusting plate is fixed to the adjusting rod, the top of the adjusting rod is fixed to the frame, and the adjusting rod extends and retracts to adjust the height of the adjusting plate.

[0014] Optionally, the rotary tillage assembly includes a rotary tillage wheel, which is rotatably connected to the frame and driven by a rotary tillage motor via a pulley.

[0015] Optionally, a mudguard is provided on the rear side of the rotary tiller, and the mudguard is fixed to the frame.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects:

[0017] By integrating the walking wheels and drive mechanism into the frame, the equipment achieves flexible movement and adaptability for traction operations. The rotary tillage unit, water and fertilizer unit, and seeding unit, arranged sequentially from front to back, form a modular collaborative operation process, eliminating the traditional "fertilization-sowing-irrigation" process and significantly reducing equipment investment and operation time. The outlets of the water and fertilizer unit and the seeding unit are adjacent and fixed to the same lifting plate. The lifting rod synchronously controls the soil penetration depth of both, ensuring that sowing and direct water and fertilizer injection are completed simultaneously at the same position and depth. This solves the problem of asynchronous water, fertilizer, and seed supply in traditional operations, which can lead to missing the critical seed germination period. This device addresses pain points and precisely targets the seed germination layer, preventing water evaporation and nutrient loss. Simultaneously, the controller precisely controls the single-time discharge volume of the water and fertilizer components and the single-time seeding volume of the seeding components. Combined with lifting and adjusting functions, it adapts to the sowing and water and fertilizer needs of different crops, effectively avoiding water and fertilizer waste and uneven sowing density. This significantly improves water and fertilizer utilization and sowing quality. Furthermore, its compact structure and convenient operation make it suitable for both dryland and water-scarce irrigated land scenarios. While alleviating summer water pressure and reducing planting costs, it significantly improves operational efficiency, providing a stable water and fertilizer supply for crop seedling growth and contributing to improved agricultural quality and efficiency. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the integrated water and fertilizer precision direct injection seeding machine of the present invention;

[0020] Figure 2 This is a schematic diagram of the water and fertilizer component structure in this invention;

[0021] Figure 3 This is a schematic diagram of the on-demand component structure in this invention;

[0022] Figure 4 This is a schematic diagram of the on-demand playback disk structure in this invention;

[0023] Figure 5 This is a schematic diagram of the end cap and pull rope structure in this invention;

[0024] Figure 6 This is a schematic diagram of the lifting plate and adjusting rod structure in this invention.

[0025] In the diagram: 1. Frame; 2. Walking wheels; 3. Connecting mechanism; 4. Rotary tillage assembly; 5. Water and fertilizer assembly; 6. Seeding assembly; 7. Lifting plate; 8. Lifting rod; 9. Adjusting plate; 10. Adjusting rod; 41. Rotary tillage wheel; 42. Mudguard; 51. Storage tank; 52. Water and fertilizer inlet; 53. First flexible tube; 54. Direct injection tube; 55. Mixing motor; 56. Mixing shaft; 57. Mixing rod; 61. Seed box; 62. Seeding tray; 63. Second flexible tube; 64. Seeding tube; 65. Stepper motor; 621. Shell; 622. Turntable; 623. Metering groove; 641. End cap; 642. Pull rope. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 6As shown, this embodiment provides a precision water and fertilizer direct injection seeding integrated machine, including: a frame 1, with four rotatable walking wheels 2 at the bottom corners of the frame 1, and a connecting mechanism 3 fixedly connected to the front end of the frame 1, the connecting mechanism 3 being used to connect a drive device; the frame 1 is sequentially equipped with a rotary tillage component 4, a water and fertilizer component 5, and a seeding component 6 from front to back; the water and fertilizer component 5 has a fixed single water and fertilizer discharge volume, the seeding component 6 has a fixed single seeding volume, and the water and fertilizer discharge of the water and fertilizer component 5 and the seeding of the seeding component 6 are controlled by a controller; the outlets of the water and fertilizer component 5 and the seeding component 6 are adjacently fixedly connected to a lifting plate 7, and lifting rods 8 are fixedly connected to both ends of the lifting plate 7, the top of the lifting rods 8 being fixedly connected to the frame 1; the lifting rods 8 drive the lifting plate 7 to rise and fall, so that the outlets of the water and fertilizer component 5 and the seeding component 6 simultaneously enter the sowing position in the soil, and simultaneously complete the sowing and direct water and fertilizer injection.

[0029] The frame 1 integrates the walking wheels 2 with the drive equipment connection mechanism 3, enabling flexible movement and adaptability for traction operations. The rotary tillage component 4, water and fertilizer component 5, and seeding component 6, arranged sequentially from front to back, form a modular collaborative operation process, eliminating the need for the traditional "fertilization-sowing-irrigation" process, significantly reducing equipment investment and operation time. The outlets of the water and fertilizer component 5 and the seeding component 6 are adjacent and fixed to the same lifting plate 7. The lifting rod 8 synchronously controls the soil penetration depth of both components, ensuring that sowing and direct water and fertilizer injection are completed simultaneously at the same position and depth. This solves the problem of asynchronous water, fertilizer, and seed supply and missed seed germination in traditional operations. Addressing critical pain points during key growth periods, the system precisely targets the seed germination layer, preventing water evaporation and nutrient loss. Simultaneously, the controller precisely controls the single-discharge volume of the water and fertilizer component 5 and the single-sowing volume of the seeding component 6. Combined with lifting and adjusting functions, it adapts to the sowing and water / fertilizer needs of different crops, effectively avoiding water and fertilizer waste and uneven sowing density, significantly improving water and fertilizer utilization and sowing quality. Furthermore, its compact structure and convenient operation make it suitable for both dryland and water-scarce irrigated land scenarios. While alleviating summer water pressure and reducing planting costs, it significantly improves operational efficiency, providing a stable water and fertilizer supply for crop seedling growth and contributing to improved agricultural quality and efficiency.

[0030] In some alternative embodiments, the water and fertilizer assembly 5 includes a storage tank 51, which is fixed to the frame 1. The top of the storage tank 51 has a water and fertilizer inlet 52, and the bottom of the storage tank 51 is connected to a first flexible pipe 53. The first flexible pipe 53 passes through the bottom surface of the frame 1 and is connected to a direct injection pipe 54. The top of the direct injection pipe 54 is fixed to the lifting plate 7, and the bottom passes through the lifting plate 7 downwards.

[0031] The arrangement of the storage tank 51 fixed to the frame 1 ensures stability during water and fertilizer storage, preventing spillage due to equipment movement or vibration during operation. Simultaneously, the top inlet facilitates rapid replenishment of water and fertilizer, reducing operational interruptions and ensuring continuous operation efficiency. The first flexible pipe 53 is cleverly designed to accommodate the lifting action of the lifting plate 7 driving the direct injection pipe 54, flexibly adapting to the vertical displacement of the direct injection pipe 54. This avoids fatigue fractures and sealing failures caused by repeated lifting during rigid pipe connections, extending pipeline lifespan and ensuring the sealing of water and fertilizer delivery, preventing leakage and waste. The top of the direct injection pipe 54 is fixed to the lifting plate 7. The bottom-facing structure allows the direct injection pipe 54 to precisely follow the lifting plate 7 into the soil, ensuring that water and fertilizer are directly injected into the target soil area around the seeds. This, combined with the integrated operation process, fulfills the core requirement of "synchronous water and fertilizer injection during sowing," reducing the volatilization and loss of water and fertilizer on the soil surface and improving the targeted supply effect of water and fertilizer for seed germination. The overall structure is simple and compact, with reliable connections between components, facilitating installation, debugging, and daily maintenance. It can also stably support the controller's precise control of water and fertilizer discharge, providing a stable and efficient delivery channel for precise water and fertilizer supply, further enhancing the overall resource utilization efficiency and operational practicality of the machine.

[0032] In some alternative implementations, a solenoid valve and a check valve are provided inside the direct injection pipe 54. The solenoid valve is controlled by a controller, which controls the amount of water and fertilizer discharged at one time by controlling the opening time of the solenoid valve.

[0033] As the actuator of the controller, the solenoid valve has a fast response speed and high control precision. By adjusting its opening time through the controller, the amount of water and fertilizer discharged in a single operation can be precisely and digitally controlled. It can flexibly adapt to the different water and fertilizer requirements of different crops and can also accurately adjust the dosage according to the soil fertility. It completely solves the problem of traditional fertilization where the dosage is based on experience and difficult to unify. It ensures that the water and fertilizer supply around each seed is uniform and consistent, laying the foundation for the uniform growth of seedlings. The addition of the one-way valve effectively blocks the risk of water and fertilizer backflow. It prevents the water and fertilizer discharged into the direct injection pipe 54 from flowing back to the first flexible pipe 53 and storage tank 51 due to equipment vibration, the resetting of the lifting plate 7, or soil pressure. It not only prevents the backflow water and fertilizer from carrying soil impurities and contaminating the clean water and fertilizer in the storage tank 51, affecting the stability of the subsequent water and fertilizer concentration, but also avoids residual scale and blockage in the pipeline caused by backflow, ensuring the long-term smooth flow of water and fertilizer.

[0034] In some alternative embodiments, a stirring motor 55 is fixedly connected to the side wall of the storage tank 51, and a stirring shaft 56 is drivenly connected to the output end of the stirring motor 55. The stirring shaft 56 is rotatably connected inside the storage tank 51, and a plurality of stirring rods 57 are fixedly connected to the stirring shaft 56 circumferentially.

[0035] The stirring motor 55 drives the stirring shaft 56 and stirring rod 57 to rotate at high speed, which can continuously and evenly stir the water and fertilizer in the storage tank 51. This completely breaks the problem of nutrient stratification and sedimentation that is easy to occur in traditional static storage, ensuring that the water and fertilizer concentration at any position in the storage tank 51 remains consistent. This ensures that each batch of water and fertilizer discharged through the direct injection pipe 54 has the same nutrient ratio, avoiding the situation where some seeds are surrounded by excessive water and fertilizer nutrients and others are insufficient due to uneven concentration. This provides a key material basis for the uniform germination and balanced growth of seedlings. At the same time, continuous stirring can effectively prevent fertilizer particles from clumping and sticking together, avoiding clumping particles from clogging the first flexible pipe 53, the direct injection pipe 54 or the solenoid valve, ensuring the long-term smooth flow of water and fertilizer, and reducing the frequency and cost of pipeline cleaning and maintenance.

[0036] In some alternative implementations, the seeding assembly 6 includes a seed box 61 fixed to the frame 1. The bottom of the seed box 61 is connected to a seeding tray 62. The bottom of the seeding tray 62 is connected to a second flexible tube 63. The second flexible tube 63 is connected to a seeding tube 64. The top of the seeding tube 64 is fixed to a lifting plate 7, and the bottom passes through the lifting plate 7 downwards. The seeding tray 62 allows a limited amount of seeds to pass through at a time.

[0037] The seed box 61, fixed to the frame 1, ensures stability during seed storage and transport, preventing seed spillage or box displacement due to equipment movement or vibration. The top opening facilitates quick reseeding, and the bottom connection to the seeding tray 62 shortens the seed transport path and reduces residual loss. The "single-time limited quantity" design of the core component, the seeding tray 62, solves the problems of inconsistent seed quantity and uneven seed count per hole in traditional sowing, ensuring that only a fixed number of seeds pass through each sowing, achieving precise hole sowing and reserving uniform space for subsequent seedling growth. This avoids nutrient competition due to overcrowding or waste of land resources due to sparse planting. The second flexible tube 63 cleverly adapts to the lifting and lowering needs of the lifting plate 7, allowing it to flexibly follow the vertical movement of the seeding tube 64. This avoids fatigue damage or sealing failure caused by repeated lifting and lowering when using rigid tubes, while ensuring smooth seed transport and preventing seed jamming. The top of the seeding tube 64 is fixed to the lifting plate 7, and the bottom faces downwards. This structure allows the seeding tube 64 to accurately follow the lifting plate 7 into the soil. It works in conjunction with the direct injection tube 54 of the water and fertilizer component 5 to ensure that the seeding position and the direct injection position of water and fertilizer are highly aligned. This allows the seeds to absorb water and fertilizer from the surrounding area in time when germinating, improving the germination rate and seedling survival rate. The overall structure is simple and compact, with each component tightly connected. It does not occupy too much space in the machine, and it can form a seamless synergy with the rotary tillage component 4 and the water and fertilizer component 5 in "land preparation-limited seeding-precise direct injection of water and fertilizer". No additional manual intervention is required to control the seeding amount, reducing labor intensity and human error, and significantly improving work efficiency. At the same time, the precise limited seeding reduces seed loss. Combined with the precise supply of water and fertilizer, it further strengthens the precision agriculture attributes of the whole machine, making the seeding and water and fertilizer links highly efficient. This comprehensively ensures the uniformity and robustness of crops in the early stage of growth, and enhances the practical value and market competitiveness of the product.

[0038] In some alternative implementations, the seeding tray 62 includes a housing 621 and a turntable 622. The turntable 622 is rotatably connected to the housing 621. The turntable 622 is evenly provided with a plurality of limiting grooves 623 around its circumference. When the limiting groove 623 is rotated to the top, it uniquely corresponds to the outlet of the seed box 61, and when it is rotated to the bottom, it uniquely corresponds to the inlet of the second flexible tube 63. The turntable 622 is driven to rotate by a stepper motor 65.

[0039] The housing 621 provides a stable installation reference and enclosed protective space for the turntable 622, effectively preventing soil, weeds, and other impurities from entering the transmission area during operation, avoiding jamming or wear of the turntable 622. It also ensures a closed transport path for seeds from the seed box 61 to the second flexible tube 63, reducing seed spillage and loss. The limiting groove 623 on the turntable 622, with its "one seed at the top, one seed at the bottom" design, structurally limits the amount of seeds taken per cycle, ensuring precise and uniform seed quantity per hole, completely solving the problems of uneven seed quantity and uncontrolled seed usage in traditional sowing methods. The design of the stepper motor 65 provides a core control advantage for the structure, ensuring even growth space for seedlings and avoiding competition for nutrients due to overcrowding or waste of land due to sparse planting. The stepper motor 65 features precise and controllable speed, adjustable rotation angle, and rapid response. It can be synchronized in real time with the machine's walking speed and the water and fertilizer components 5 via the controller, accurately matching the sowing rhythm. It can adjust the rotation frequency of the turntable 622 according to the sowing density requirements of different crops, and ensure the precise alignment of the limiting trough 623 with the inlet and outlet by precisely controlling the rotation angle, avoiding mis-sowing, missed sowing, or over-sowing.

[0040] In some alternative implementations, the bottom of the seeding tube 64 is hinged with an end cap 641, and a pull rope 642 is fixed to one side of the end cap 641 inside the seeding tube 64. The other end of the pull rope 642 passes through the seeding tube 64 and is fixed to the frame 1. When the lifting rod 8 drives the seeding tube 64 to descend, the top position of the pull rope 642 remains unchanged while the bottom descends. Therefore, the pull rope 642 is pulled, causing the end cap 641 to engage with the end of the seeding tube 64. Only after the engagement is complete does the seeding tray 62 release the seeds. When the lifting rod 8 drives the seeding tube 64 to rise, the pull rope 642 is affected by the gravity of the end cap 641, causing the end cap 641 to separate from the end of the seeding tube 64. Only then are the seeds sown into the soil.

[0041] The opening and closing of the end cap 641 is deeply integrated with the lifting and lowering action of the seeding tube 64. No additional complex electric or pneumatic drive devices are needed; automation is achieved solely through the natural switching between the tension of the pull rope 642 and the gravity of the end cap 641. This results in a simple structure, low failure rate, low maintenance costs, and suitability for complex agricultural operations. During the descent of the seeding tube 64 into the soil, the pull rope 642 pulls and drives the end cap 641 to close, effectively preventing seeds released from the seeding tray 62 from falling prematurely. This avoids seeds being exposed to the soil surface or being scattered by equipment vibration before entering the soil, preventing seed waste, missed sowing, or sowing position misalignment. Simultaneously, the closed state provides a sealed transport channel for the seeds, preventing soil impurities from entering the seeding tube 64 and causing seed jamming or tube blockage. When the seeding tube 64 rises with the lifting plate 7 and detaches... When the soil is exposed, the tension of the pull rope 642 disappears, and the end cap 641 naturally separates under its own gravity, allowing the seeds to fall precisely into the prepared soil holes. This ensures consistent sowing depth and precise alignment with the water and fertilizer injection positions, providing a stable soil environment and water and fertilizer supply for seed germination. This structure works in synergy with the seeding component 6, receiving a limited quantity of seeds from the seeding tray 62. The precise opening and closing action ensures a closed loop of "quantitative seeding + precise soil placement," eliminating the need for manual intervention in sowing timing, reducing human error, and improving operational efficiency. It also prevents premature seed drop from reducing germination rates, further enhancing the synergistic effect of "precise sowing + precise water and fertilizer" for the entire machine. This makes the sowing process more stable and reliable, significantly improving the practical value of the equipment and the success rate of operations.

[0042] In some alternative implementations, the top of the pull rope 642 and the top of the lifting rod 8 are both fixed to the adjusting plate 9. The top of the adjusting plate 9 is fixed to the adjusting rod 10, which is fixed to the frame 1. The adjusting rod 10 can extend and retract to adjust the height of the adjusting plate 9.

[0043] The telescopic function of the adjusting rod 10 provides the equipment with highly flexible adaptability. It allows for adjustments to the height of the adjusting plate 9 based on the sowing depth requirements of different crops and the operational requirements of different soil textures. This, in turn, synchronously adjusts the installation reference of the lifting rod 8 and the pull rope 642, ensuring precise and controllable penetration depth of the sowing tube 64. Simultaneously, it precisely matches the tension threshold of the pull rope 642, ensuring that the opening and closing timing of the end cap 641 perfectly matches the lifting stroke of the sowing tube 64. This prevents premature separation or delayed closing of the end cap 641 due to sowing depth adjustments, ensuring the seeds are always in the correct position. Precise seeding depth is achieved through the setting of adjustment plate 9, which unifies the fixing points of pull rope 642 and lifting rod 8, ensuring that the two move synchronously during adjustment. This avoids misalignment caused by adjusting a single component, maintains the coordination and consistency of the opening and closing of end cover 641 and the raising and lowering of seeding tube 64, reduces operational deviations under conditions such as vibration and terrain undulation, and ensures uniformity of seeding depth and seeding accuracy throughout the row. At the same time, the unified adjustment benchmark makes the tension of pull rope 642 more stable, reducing the problem of loosening and displacement of pull rope 642 caused by the dispersion of fixing points during long-term operation.

[0044] In some alternative implementations, the rotary tillage assembly 4 includes a rotary tillage wheel 41, which is rotatably connected to the frame 1 and is driven by a rotary tillage motor via a pulley.

[0045] As the core pre-treatment component at the front end of the machine, the rotary tillage component 4 can quickly break up and loosen the soil before sowing and direct water and fertilizer injection, eliminating the soil compaction layer and creating a soft and suitable soil environment for subsequent seed planting and direct water and fertilizer injection. This not only facilitates root extension during seed germination but also reduces water and fertilizer leakage and improves water and fertilizer absorption efficiency. Together with the subsequent seeding component 6 and water and fertilizer component 5, it forms a seamless connection of "land preparation-sowing-direct water and fertilizer injection", greatly shortening the interval between multiple operations and improving overall operation efficiency.

[0046] In some alternative implementations, a mudguard 42 is provided on the rear side of the rotary tiller 41, and the mudguard 42 is fixed to the frame 1.

[0047] The mudguard 42 is securely and reliably installed on the frame 1, effectively withstanding the impact of soil splashing and stone collisions during rotary tillage. This prevents the mudguard 42 from shifting or falling off due to vibration or terrain undulations during operation, making it suitable for complex field conditions. Its core function is to block the splashing of mud, gravel, weeds, and other debris from the high-speed rotation of the rotary tiller 41. This prevents these debris from directly impacting or adhering to core components such as the seeding component 6 and the water and fertilizer component 5, avoiding blockage, wear, or contamination, and ensuring the accuracy of subsequent sowing and direct water and fertilizer injection, as well as the service life of the equipment. At the same time, the layout of the mudguard 42, which fits against the rear of the rotary tiller 41, helps to level the soil after rotary tillage, preventing unevenness or excessive soil accumulation on the surface. This provides a flat and uniform soil base for the subsequent sowing pipe 64 to enter the soil and direct water and fertilizer injection, ensuring consistent seed sowing depth and accurate water and fertilizer injection location, further enhancing the synergistic effect of "land preparation-sowing-direct water and fertilizer injection".

[0048] All aspects not detailed in this invention are conventional technical means known to those skilled in the art.

[0049] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0050] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A precision water and fertilizer direct injection seeding integrated machine, characterized in that, include: The frame (1) has four rotating wheels (2) at the bottom corners. The front end of the frame (1) is fixedly connected to a connecting mechanism (3), which is used to connect the drive equipment. The frame (1) is installed with a rotary tillage component (4), a water and fertilizer component (5), and a seeding component (6) from front to back. The water and fertilizer component (5) has a fixed amount of water and fertilizer discharged at one time, and the seeding component (6) has a fixed amount of seeding at one time. The water and fertilizer discharged by the water and fertilizer component (5) and the seeding by the seeding component (6) are controlled by a controller. The outlet of the water and fertilizer component (5) and the outlet of the seeding component (6) are fixedly connected to a lifting plate (7). The lifting plate (7) is fixedly connected to both ends of the lifting plate (7). The top of the lifting rod (8) is fixedly connected to the frame (1). The lifting plate (7) is raised and lowered by the lifting rod (8), so that the outlet of the water and fertilizer component (5) and the outlet of the seeding component (6) enter the sowing position in the soil at the same time, and the sowing and direct water and fertilizer injection are completed at the same time.

2. The water and fertilizer precision direct injection seeding integrated machine according to claim 1, characterized in that, The water and fertilizer assembly (5) includes a storage tank (51), which is fixed to the frame (1). The top of the storage tank (51) is provided with a water and fertilizer inlet (52), and the bottom of the storage tank (51) is connected to a first flexible pipe (53). The first flexible pipe (53) passes through the bottom surface of the frame (1) and is connected to a direct injection pipe (54). The top of the direct injection pipe (54) is fixed to the lifting plate (7), and the bottom passes through the lifting plate (7) downwards.

3. The water and fertilizer precision direct injection seeding integrated machine according to claim 2, characterized in that, The direct injection pipe (54) is equipped with a solenoid valve and a check valve. The solenoid valve is controlled by the controller, which controls the amount of water and fertilizer discharged at one time by controlling the opening time of the solenoid valve.

4. The water and fertilizer precision direct injection seeding integrated machine according to claim 2, characterized in that, A stirring motor (55) is fixedly connected to the side wall of the storage tank (51). The output end of the stirring motor (55) is connected to a stirring shaft (56). The stirring shaft (56) is rotatably connected inside the storage tank (51). Several stirring rods (57) are fixedly connected to the stirring shaft (56) circumferentially.

5. The water and fertilizer precision direct injection seeding integrated machine according to claim 1, characterized in that, The seeding assembly (6) includes a seed box (61) which is fixed to the frame (1). The bottom of the seed box (61) is connected to a seeding tray (62). The bottom of the seeding tray (62) is connected to a second flexible tube (63). The second flexible tube (63) is connected to a seeding tube (64). The top of the seeding tube (64) is fixed to the lifting plate (7), and the bottom passes through the lifting plate (7) downwards. The seeding tray (62) allows a limited number of seeds to pass through at a time.

6. The water and fertilizer precision direct injection seeding integrated machine according to claim 5, characterized in that, The seeding tray (62) includes a housing (621) and a turntable (622). The turntable (622) is rotatably connected inside the housing (621). The turntable (622) is evenly provided with several limiting grooves (623) around its circumference. When the limiting groove (623) rotates to the top, it corresponds uniquely to the outlet of the seed box (61), and when it rotates to the bottom, it corresponds uniquely to the inlet of the second flexible tube (63). The turntable (622) is driven to rotate by a stepper motor (65).

7. The water and fertilizer precision direct injection seeding integrated machine according to claim 5, characterized in that, The bottom of the seeding tube (64) is hinged with an end cap (641). The end cap (641) is fixed to one side inside the seeding tube (64) with a pull rope (642). The other end of the pull rope (642) passes through the seeding tube (64) and is fixed to the frame (1). When the lifting rod (8) drives the seeding tube (64) to descend, the pull rope (642) is pulled, so that the end cap (641) is fastened to the end of the seeding tube (64). When the lifting rod (8) drives the seeding tube (64) to rise, the pull rope (642) is affected by the gravity of the end cap (641), so that the end cap (641) is separated from the end of the seeding tube (64).

8. The water and fertilizer precision direct injection seeding integrated machine according to claim 7, characterized in that, The top of the pull rope (642) and the top of the lifting rod (8) are both fixed to the adjusting plate (9). The top of the adjusting plate (9) is fixed to the adjusting rod (10), and the top of the adjusting rod (10) is fixed to the frame (1). The adjusting rod (10) extends and retracts to adjust the height of the adjusting plate (9).

9. The water and fertilizer precision direct injection seeding integrated machine according to claim 1, characterized in that, The rotary tillage assembly (4) includes a rotary tillage wheel (41), which is rotatably connected to the frame (1). The rotary tillage wheel (41) is driven by a rotary tillage motor through a belt pulley.

10. The water and fertilizer precision direct injection seeding integrated machine according to claim 9, characterized in that, A mudguard (42) is provided on the rear side of the rotary tiller (41), and the mudguard (42) is fixed to the frame (1).

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