A deep-root fertilization device for agricultural seedling cultivation

Abstract

This application discloses a deep-root fertilization device for agricultural seedling cultivation, belonging to the field of agricultural planting technology. It includes a base, a feeding pump mounted on the surface of the base, a fertilizer cylinder mounted on the upper end of the feeding pump, a limit seat fixedly installed on the surface of the base, a motor mounted on the upper side of the limit seat, a lead screw fixedly installed at the output end of the motor, and a connecting seat mounted in the middle of the lead screw. In this application, turning on the motor causes the connecting seat to move downwards, turning on the feeding pump, and turning on the motor causes the hollow worm gear to rotate, which in turn rotates the rotating rod. During clockwise rotation, the storage tube connects to the discharge rod to store fertilizer inside. When the motor rotates in reverse, the storage tube moves outwards under the action of the round rod and the slide rail on the turntable. Under centrifugal force, the fertilizer inside the storage tube is discharged through the discharge tube to fertilize the plants, avoiding overly singular fertilization locations and effectively covering a wider root area.

Description

Technical Field

[0001] This application relates to the field of agricultural planting technology, and more specifically, to a deep-root fertilization device for agricultural seedling cultivation. Background Technology

[0002] In agricultural planting, if fertilizer needs to be applied to the deep roots of plants, a large amount of soil often needs to be dug up to reach the target location. This process is not only time-consuming and laborious, but also prone to damaging the plant roots, thus affecting plant growth. If a drilling machine is used for digging, the hole is prone to collapse when fertilizer is added after digging, thus affecting the placement of the fertilizer.

[0003] In deep-root fertilization, when traditional fertilization devices apply fertilizer to a specific point in the soil, the lateral diffusion range of the fertilizer is usually limited to a radius centered on the fertilization point due to capillary resistance between soil particles, adsorption by soil colloids, and the gravity settling characteristics of the fertilizer itself. The vertical penetration depth is also only 25-30 cm. This single-point fertilization mode is difficult to effectively cover the growth depth of plant roots in the agricultural seedling stage. In particular, for seedling varieties with well-developed taproots, the radial distribution of their lateral roots in the soil results in more than 30% of root absorption blind spots in the existing fertilization method. In addition, the difference in soil texture further exacerbates the unevenness of fertilizer diffusion. In clay soil, the fertilizer diffusion rate is 40%-50% lower than in sandy soil, which can easily cause excessively high local fertilizer concentrations and root burn. Meanwhile, areas far from the fertilization point suffer from nutrient deficiency, which hinders root growth and ultimately affects the overall growth and development of the seedlings and the efficiency of nutrient absorption. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a deep-root fertilization device for agricultural seedling cultivation, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides a deep-root fertilization device for agricultural seedling cultivation, comprising a base, a feeding pump mounted on the surface of the base, a fertilizer cylinder mounted on the upper end of the feeding pump, a limit seat fixedly mounted on the surface of the base, a motor I mounted on the upper side of the limit seat, a lead screw fixedly mounted on the output end of the motor I, a connecting seat mounted in the middle of the lead screw, a motor II mounted on the upper side of the connecting seat, a gear I fixedly connected to the output end of the motor II, a hollow worm gear rotatably mounted on the lower side of the connecting seat, an adjusting fertilization device mounted inside the hollow worm gear, the adjusting fertilization device comprising a rotating rod I, a rotating shell rotatably connected to the lower side of the rotating rod I, a discharge rod I mounted at the bottom of the rotating rod I, a limit rod fixedly mounted on the inner side of the rotating shell, a storage tube slidably connected to the inner side of the rotating shell, a discharge rod II mounted on the left end of the storage tube, a round rod fixedly mounted on the surface of the storage tube, and a turntable fixedly mounted at the bottom end of the rotating rod I. In this application, motor one is first started. Motor one rotates the lead screw, causing the connecting seat to move downwards. After the feeding pump starts, it begins to deliver fertilizer to the inlet at the top of the rotating rod. Subsequently, motor two is started. Motor two drives the hollow worm gear to rotate through the transmission device. The rotation of the hollow worm gear further drives the rotating rod one to rotate synchronously. When the rotating rod one rotates clockwise, the storage tube and the discharge rod one are connected. The fertilizer is guided and stored in the internal space of the storage tube during the conveying process. When fertilization is needed, motor two reverses the operation. At this time, the storage tube moves outwards under the combined action of the round rod and the slide rail on the turntable. Under the action of centrifugal force, the fertilizer in the storage tube is quickly discharged through the discharge rod two and evenly applied around the plant. This design cleverly avoids the problem of the fertilization location being too singular in traditional fertilization methods. It can effectively cover a wider root area, ensuring that the plant can fully absorb nutrients and promote its healthy growth.

[0006] Preferably, the turntable surface is provided with a slide rail for the circular rod to move, and the fertilizer cylinder is discharged through the feed port of the feed pump.

[0007] Preferably, the first and second discharge rods can only discharge material in one direction, and the right end of the storage tube has a one-way groove for receiving the first discharge rod.

[0008] Preferably, the rotating rod is hollow, and the feed port of the feeding pump is connected to the rotating rod.

[0009] Preferably, the middle part of the limiting seat is equipped with a cleaning device for brushing the hollow worm gear.

[0010] Preferably, the cleaning device includes a fixed bracket, inside which a second gear is assembled. A U-shaped bracket is fixedly installed on the left side of the fixed bracket, and a transmission rod is rotatably connected through the middle of the U-shaped bracket. A transmission gear is assembled at the lower end of the transmission rod, and a cleaning turntable is assembled at the upper end of the transmission rod. A brush is assembled on the outer surface of the cleaning turntable. After fertilization, motor one starts and reverses, driving the connecting seat to move upward. Motor two simultaneously drives the hollow worm gear to rotate, the lead screw rotates, driving gear two to rotate, gear two drives the transmission gear to rotate, and the transmission gear drives the cleaning turntable to rotate, thus rotating and cleaning the soil on the hollow part outside the hollow worm gear. This achieves a more effective cleaning effect on the soil on the hollow worm gear, effectively avoiding prolonged contact between the hollow worm gear and the soil, reducing the risk of corrosion of the hollow worm gear, and significantly extending the maintenance cycle and service life of the hollow worm gear.

[0011] Preferably, the length of the brush reaches the hollow part of the hollow worm gear, and when the lead screw rotates, it drives the second gear to rotate. The second gear is meshed with the transmission gear, and the fixed bracket is fixedly connected to the inner side of the limiting seat.

[0012] Preferably, the fertilizer cylinder is equipped with a rotatable stirring device inside.

[0013] Preferably, the stirring device includes a second rotating rod and a first pulley. The second pulley is mounted on the upper side of the second rotating rod. The first pulley and the second pulley are connected by a belt. A third rotating rod is mounted in the middle of the second rotating rod. A scraper is fixedly installed at the right end of the third rotating rod.

[0014] Preferably, the rotating rod three and the scraper are distributed in a row on the rotating rod two, and the adjacent two groups of scrapers are staggered in the vertical direction.

[0015] The advantages of this application are: (1) In this application, motor one is first started. Motor one drives the connecting seat to move downward through the rotation of the lead screw. After the feed pump is started, the fertilizer is transported to the feed port at the top of the rotating rod one. Then, motor two is started. Motor two drives the hollow worm to rotate through the transmission device. The rotation of the hollow worm further drives the rotating rod one to rotate synchronously. When the rotating rod one rotates clockwise, the storage pipe and the discharge rod one are connected. The fertilizer is guided and stored in the internal space of the storage pipe during the transportation process. When fertilization is needed, motor two reverses the operation. At this time, the storage pipe moves outward under the combined action of the round rod and the slide rail on the turntable. Under the action of centrifugal force, the fertilizer in the storage pipe is quickly discharged through the discharge rod two and evenly applied to the area around the plant. This design cleverly avoids the problem of the fertilization location being too singular in the traditional fertilization method. It can effectively cover a wider root area, ensure that the plant can fully absorb nutrients and promote its healthy growth.

[0016] (2) In this application, after fertilization is completed, motor one is turned on and reversed, driving the connecting seat to move upward. At the same time, motor two drives the hollow worm to rotate, the lead screw rotates, driving gear two to rotate, gear two drives the transmission gear to rotate, and the transmission gear drives the cleaning turntable to rotate, cleaning the soil on the hollow part outside the hollow worm. This achieves a more effective cleaning effect on the soil on the hollow worm, effectively avoiding long-term contact between the hollow worm and the soil, reducing the risk of corrosion of the hollow worm, and significantly extending the maintenance cycle and service life of the hollow worm.

[0017] (3) In this application, during use, the motor rotates, which drives the pulley to rotate, which in turn drives the pulley to rotate, which in turn drives the rotating rod inside the fertilizer cylinder to rotate. The scraper on the rotating rod scrapes the inside of the fertilizer cylinder, ensuring that the fertilizer can smoothly enter the feed pump inlet, avoiding the problem of scale buildup on the cylinder wall caused by fertilizer residue in traditional fertilizer application devices, significantly improving the utilization rate of fertilizer, and fundamentally reducing the occurrence of resource waste. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the fertilizer application device of the present invention; Figure 4 This is a schematic diagram of a portion of the adjustable fertilization device of the present invention; Figure 5 This is a schematic diagram of the cleaning device structure of the present invention; Figure 6 This is a schematic diagram of a portion of the cleaning device of the present invention; Figure 7 This is a schematic diagram of the stirring device structure of the present invention; Figure 8 This is a partial enlarged schematic diagram of the stirring device of the present invention.

[0020] In the above image, 1. Base; 2. Feed pump; 3. Fertilizer cylinder; 4. Motor 1; 5. Motor 2; 6. Hollow worm gear; 7. Limiting bracket; 8. Lead screw; 9. Connecting seat; 10. Adjustable fertilizer applicator; 1001. Rotating rod one; 1002. Rotating shell; 1003. Turntable; 1004. Limiting rod; 1005. Storage pipe; 1006. Discharge rod two; 1007. Round rod; 1008. Discharge rod one; 11. Cleaning device; 1101. Fixed bracket; 1102. Gear II; 1103. U-shaped bracket; 1104. Transmission rod; 1105. Transmission gear; 1106. Cleaning turntable; 1107. Brush; 12. Stirring device; 1201. Belt pulley one; 1202. Belt; 1203. Belt pulley two; 1204. Rotating rod two; 1205. Rotating rod three; 1206. Scraper; 13. Gear one. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] Example 1, see Figures 1-4This embodiment provides a deep-root fertilization device for agricultural seedling cultivation, including a base 1. A feeding pump 2 is mounted on the surface of the base 1, and a fertilizer cylinder 3 is mounted on the upper end of the feeding pump 2. The top of the fertilizer cylinder 3 is provided with a feeding port with a sealing ring. A limiting seat 7 is fixedly installed on the surface of the base 1, and a guide groove is machined on its inner side. A motor 4 is mounted on the upper side of the limiting seat 7. A lead screw 8 is fixedly installed on the output end of the motor 4. A connecting seat 9 is mounted in the middle of the lead screw 8. Slider blocks that cooperate with the grooves of the limiting seat 7 are installed on both sides of the connecting seat 9. A second motor 5 is mounted on the upper side of the connecting seat 9. A gear 13 is fixedly connected to the output end of the second motor 5. The gear 13 meshes with the gear ring at the top of the hollow worm 6. A hollow worm 6 is rotatably mounted on the lower side of the connecting seat 9. The outer wall of the hollow worm 6 is machined with a spiral soil-breaking thread. An adjusting fertilization device 10 is installed inside the hollow worm 6. 10 includes a rotating rod 1001, which is a hollow structure. The feed port of the feed pump 2 is connected to the feed inlet at the top of the rotating rod 1001 via a hose. A rotating shell 1002 is rotatably connected to the lower side of the rotating rod 1001. A discharge rod 1008 is assembled at the bottom of the rotating rod 1001. A limit rod 1004 is fixedly installed on the inner side of the rotating shell 1002. A storage pipe 1005 is slidably connected to the inner side of the rotating shell 1002. The right end of 1005 is provided with a one-way groove that mates with the discharge rod 1008. The left end of the storage tube 1005 is also equipped with a discharge rod 1006 with the same structure. Both the discharge rod 1008 and the discharge rod 1006 have a built-in one-way discharge structure. A round rod 1007 is fixedly installed on the surface of the storage tube 1005. A turntable 1003 is fixedly installed at the bottom end of the rotating rod 1001. The surface of the turntable 1003 is provided with a spiral-shaped slide rail.

[0023] In actual use of the above equipment, motor 4 is turned on, and lead screw 8 begins to rotate. The output shaft of motor 4 drives lead screw 8 to rotate. Under the meshing action of the trapezoidal thread between lead screw 8 and connecting seat 9, lead screw 8 drives connecting seat 9 to move smoothly downward. At the same time, feed pump 2 is started. Feed pump 2 delivers the liquid fertilizer in fertilizer cylinder 3 to the feed port at the top of rotating rod 1001 through a hose. Simultaneously, motor 5 is turned on, driving gear 13 to mesh with the gear ring at the top of hollow worm 6, driving hollow worm 6 to rotate. The spiral soil-breaking thread at the bottom of hollow worm 6 gradually drills into the soil during rotation to facilitate the feeding operation. When hollow worm 6 reaches the deep root area as it rotates and moves downward, the fertilizer in fertilizer cylinder 3 is stably delivered to the hollow channel of rotating rod 1001 under the continuous action of feed pump 2. Hollow worm 6 drives rotating rod 1001 to rotate. When rod 1001 rotates clockwise, turntable 1003, fixed at the bottom of rod 1001, rotates synchronously. Guided by the spiral slide rail on the surface of turntable 1003 and the round rod 1007 on the surface of storage tube 1005, storage tube 1005 slides inward along the limiting rod 1004 on the inner side of rotating shell 1002, so that the one-way groove at its right end is tightly connected with discharge rod 1008. The silicone sealing gasket in the groove ensures that there is no leakage of fertilizer. Fertilizer enters the storage tube 1005 through discharge rod 1008 for storage. After storage, motor 25 is turned on to reverse. Storage tube 1005 moves outward under the reverse guidance of round rod 1007 and slide rail on turntable 1003. Under the action of centrifugal force, fertilizer in storage tube 1005 overcomes the pressure of discharge rod 2 1006 and is evenly discharged through discharge rod 2 1006, realizing ring fertilization of plant roots. This fertilization method uses centrifugal force to spread fertilizer in a 360-degree direction, effectively covering the root area within a 500mm diameter range. It avoids the problem of the fertilization location being too singular due to traditional fixed-point fertilization, and can increase the root absorption area by more than 40%.

[0024] Example 2, see Figures 1-6In this embodiment, based on Embodiment 1, a cleaning device 11 for brushing the hollow worm gear 6 is installed in the middle of the limiting seat 7. This cleaning device 11 adopts a modular design for easy maintenance and replacement. The cleaning device 11 includes a fixed bracket 1101, which is fixedly connected to the inner side of the limiting seat 7. The fixed bracket 1101 is connected to the limiting seat 7 by welding, and its surface is treated with electrophoretic rust prevention to adapt to humid working environments. A gear 1102 is installed inside the fixed bracket 1101, which meshes with the lead screw 8 when it rotates. A U-shaped bracket 1103 is fixedly installed on the left side of 101. A transmission rod 1104 is rotatably connected through the middle of the U-shaped bracket 1103. A transmission gear 1105 is assembled at the lower end of the transmission rod 1104. Gear 1102 and transmission gear 1105 are meshed. A cleaning turntable 1106 is assembled at the upper end of the transmission rod 1104. A brush 1107 is assembled on the outer surface of the cleaning turntable 1106. The brush 1107 expands under the action of centrifugal force. Its bristles in the free state can completely cover and reach the hollow part of the outer surface of the hollow worm gear 6, forming a cleaning area without dead angles.

[0025] In practical use, after fertilization, motor 4 reverses. The trapezoidal thread of the lead screw 8 and connecting seat 9 engages, causing the connecting seat 9 to move upwards. The connecting seat 9 then moves the hollow worm gear 6 upwards, completely disengaging it from the soil tillage layer. Simultaneously, under the action of the lead screw 8, gear 1102 rotates. Gear 1102 drives the transmission gear 1105 under the U-shaped bracket 1103 to rotate. The transmission gear 1105 drives the transmission rod 1104 to rotate, which in turn drives the cleaning turntable 1106 to rotate. The cleaning turntable 1106 has three sets of nylon brushes 1 arranged symmetrically at 120-degree angles. Under the action of centrifugal force, 107 undergoes radial expansion, activating motor 5. Motor 5 drives the hollow worm gear 6 to rotate, and the brush 1107 on the cleaning turntable 1106 rotates and cleans the soil on the hollow part of the outer side of the hollow worm gear 6. At the same time, the hollow worm gear 6 rotates, and its bristles cooperate with the outer wall of the hollow area on the outer side of the hollow worm gear 6 to deeply rotate and clean the attached sticky soil, fertilizer crystals, and plant roots. This achieves a more effective cleaning effect on the soil on the hollow worm gear 6, effectively avoiding prolonged contact between the hollow worm gear 6 and the soil, reducing the risk of corrosion of the hollow worm gear 6, and significantly extending the maintenance cycle and service life of the hollow worm gear 6.

[0026] Example 3, see Figures 1-8In this embodiment, based on Embodiment 1, the fertilizer cylinder 3 is internally equipped with a rotatable stirring device 12. The stirring device 12 includes a second rotating rod 1204 and a first pulley 1201. A second pulley 1203 is mounted on the upper side of the second rotating rod 1204. The first pulley 1201 and the second pulley 1203 are connected by a belt 1202. A third rotating rod 1205 is mounted in the middle of the second rotating rod 1204. The third rotating rod 1205 is welded to the rotating rod. The second 1204 forms a T-shaped structure. The right end of the third 1205 is fixedly installed with a scraper 1206. The right end of each set of third 1205 is fixedly installed with a scraper 1206 by a bolt assembly. The cross-section of the scraper 1206 is a right triangle with the hypotenuse facing the direction of rotation. The third 1205 and the scraper 1206 are distributed in a row on the second 1204. The adjacent sets of scrapers 1206 are staggered in the vertical direction to form a three-dimensional interlaced stirring area.

[0027] In practical use, after motor 4 starts running, its output shaft drives the coaxially connected pulley 1201 to rotate synchronously. Pulley 1201 transmits power to the driven pulley 1203 via a tensioned belt 1202, causing pulley 1203 to rotate in the same direction and at the same speed as pulley 1201. Pulley 1203 drives rotating rod 1205 in a 360-degree circular motion via a keyed connection structure. During rotation, rotating rod 1205 drives the scrapers 1206, which are arranged in a spiral array on its outer wall, to rotate synchronously. The rubber scraper of scraper 1206 maintains a 0.5mm gap with the inner wall of fertilizer cylinder 3. When rotating, it forms a continuous dynamic scraping action on the inner wall of fertilizer cylinder 3, which can effectively remove fertilizer particles and clumps adsorbed on the cylinder wall due to humidity or static electricity. The scraped-off fertilizer slides down the cylinder wall under the action of gravity to the conical collection area at the bottom of fertilizer cylinder 3, ensuring that the fertilizer can smoothly enter the feed inlet of feed pump 2. This avoids the problem of scale buildup on the cylinder wall caused by fertilizer residue in traditional fertilization devices, significantly improves the utilization rate of fertilizer, and fundamentally reduces the occurrence of resource waste.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A deep-root fertilization device for agricultural seedling cultivation, comprising a base (1), characterized in that, A feeding pump (2) is mounted on the surface of the base (1), and a fertilizer cylinder (3) is mounted on the upper end of the feeding pump (2). A limit seat (7) is fixedly installed on the surface of the base (1). A motor (4) is mounted on the upper side of the limit seat (7). A lead screw (8) is fixedly installed on the output end of the motor (4). A connecting seat (9) is mounted in the middle of the lead screw (8). A motor (5) is mounted on the upper side of the connecting seat (9). A gear (13) is fixedly connected to the output end of the motor (5). A hollow worm gear (6) is rotatably mounted on the lower side of the connecting seat (9). An adjusting fertilizer applicator (10) is installed inside the hollow worm gear (6). The adjusting fertilizer application device (10) includes a rotating rod (1001), a rotating shell (1002) is rotatably connected to the lower side of the rotating rod (1001), a discharge rod (1008) is assembled at the bottom of the rotating rod (1001), a limit rod (1004) is fixedly installed on the inner side of the rotating shell (1002), a storage pipe (1005) is slidably connected to the inner side of the rotating shell (1002), a discharge rod (1006) is assembled at the left end of the storage pipe (1005), a round rod (1007) is fixedly installed on the surface of the storage pipe (1005), and a turntable (1003) is fixedly installed at the bottom end of the rotating rod (1001).

2. The deep-root fertilization device for agricultural seedling cultivation according to claim 1, characterized in that, The surface of the turntable (1003) is provided with a slide rail for the round rod (1007) to move, and the fertilizer cylinder (3) is discharged through the feed port of the feed pump (2).

3. The deep-root fertilization device for agricultural seedling cultivation according to claim 2, characterized in that, The discharge rod one (1008) and discharge rod two (1006) can only discharge material in one direction. The storage tube (1005) has a one-way groove at the right end to receive the discharge rod one (1008).

4. The deep-root fertilization device for agricultural seedling cultivation according to claim 3, characterized in that, The rotating rod (1001) is hollow, and the feeding port of the feeding pump (2) is connected to the rotating rod (1001).

5. The deep-root fertilization device for agricultural seedling cultivation according to claim 1, characterized in that, The middle part of the limiting seat (7) is equipped with a cleaning device (11) that brushes the hollow worm (6).

6. The deep-root fertilization device for agricultural seedling cultivation according to claim 5, characterized in that, The cleaning device (11) includes a fixed bracket (1101), a gear (1102) is installed inside the fixed bracket (1101), a U-shaped bracket (1103) is fixedly installed on the left side of the fixed bracket (1101), a transmission rod (1104) is rotatably connected through the middle of the U-shaped bracket (1103), a transmission gear (1105) is installed at the lower end of the transmission rod (1104), a cleaning turntable (1106) is installed at the upper end of the transmission rod (1104), and a brush (1107) is installed on the outer surface of the cleaning turntable (1106).

7. A deep-root fertilization device for agricultural seedling cultivation according to claim 6, characterized in that, The length of the brush (1107) reaches the hollow part of the hollow worm (6). When the screw (8) rotates, it drives the second gear (1102) to rotate. The second gear (1102) and the transmission gear (1105) are meshed. The fixed bracket (1101) and the inner side of the limiting card seat (7) are fixedly connected.

8. The deep-root fertilization device for agricultural seedling cultivation according to claim 1, characterized in that, The fertilizer cylinder (3) is equipped with a rotatable stirring device (12).

9. A deep-root fertilization device for agricultural seedling cultivation according to claim 8, characterized in that, The stirring device (12) includes a second rotating rod (1204) and a first pulley (1201). The second rotating rod (1204) is equipped with a second pulley (1203) on its upper side. The first pulley (1201) and the second pulley (1203) are connected by a belt (1202). The third rotating rod (1205) is equipped in the middle of the second rotating rod (1204). A scraper (1206) is fixedly installed at the right end of the third rotating rod (1205).

10. A deep-root fertilization device for agricultural seedling cultivation according to claim 9, characterized in that, The rotating rod three (1205) and scraper (1206) are arranged in a row on the rotating rod two (1204), and the adjacent two sets of scraper (1206) are staggered in the vertical direction.

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