Tea leaf planting efficient fertilizer device

Abstract

The application discloses a kind of tea planting high-efficiency fertilization device, including fertilizer box, material box support, front wheel and moving plate, two The front wheel is arranged at the bottom of one end of material box support, two The inside top of front wheel is fixed with lifting column, The lifting column is slidably sleeved with protective cover, The protective cover bottom is fixed on material box support, Each The one end of lifting column extending to the inside of protective cover is fixed with moving plate.The application is automatically adaptive design by front wheel, under the fertilization sequence from high to low, it can adapt to tea field ladder terrain, without pre-measuring the height difference of ladder tea field in advance, reduce the preparation work needed when fertilizing, and when completing ladder crossing, fertilizer box can be automatically restored to horizontal, so that fertilizer box can be kept stable level during fertilization, so that operator can be easily pulled by equipment, greatly improve the applicability of fertilization device.

Description

Technical Field

[0001] This invention relates to the field of fertilization equipment technology, and in particular to a high-efficiency fertilization device for tea cultivation. Background Technology

[0002] In the process of tea cultivation, regular fertilization is necessary to ensure yield and tea quality. Fertilization is a core aspect of tea garden production management, directly affecting the growth of tea trees, tea yield and flavor quality. It also helps maintain the soil fertility of the tea garden and ensures the sustainable and high-quality tea production of tea trees. When fertilizing, it is necessary to avoid areas where the root system is concentrated to prevent root burn. The ratio should be adjusted according to the age, vigor and soil fertility of the trees to avoid excessive application of nitrogen fertilizer, which can lead to a decline in tea quality and soil acidification. For example, Chinese invention patent CN118923251B discloses an intelligent fertilizer applicator for tea planting and production, including a fertilizer applicator and a storage bin. The fertilizer applicator carries fertilizer through the storage bin and moves through the tea garden. It also includes a support frame, which is installed on the fertilizer applicator and the storage bin is installed on the support frame. A camera is installed on the support frame. The spiral blades rotate faster, which speeds up the fertilizer delivery and spreading speed, while the digging and backfilling speeds of the shovel and conveyor belt also increase. For example, if the fertilizer is spread quickly, the digging and backfilling speeds will increase simultaneously, and if the fertilizer is spread slowly, the digging and backfilling speeds will decrease accordingly. This avoids inconsistent speeds between the two, which could lead to over- or under-fertilization, thereby improving the uniformity of fertilization, further promoting the uniformity of tea tree growth, and reducing the possibility of inconsistent tea quality after harvesting.

[0003] However, its use is easily limited by the terrain of the tea field. For example, in terraced tea fields, the stepped terrain makes it impossible for the fertilization device to move directly and gradually downwards during the fertilization process. As a result, the fertilization device needs to be lifted and assisted to cross the steps. Since most fertilization devices have a certain weight, it is difficult to operate them when crossing the steps, and improper operation can easily damage the surrounding tea trees.

[0004] Therefore, how to provide an efficient fertilization device for tea cultivation is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a highly efficient fertilization device for tea cultivation. Through the automatic adaptive design of the front wheel, this invention can adapt to the terraced terrain of the tea field in a fertilization sequence from high to low, eliminating the need to pre-measure the height difference of the terraced tea field and reducing the preparation work required for fertilization.

[0006] According to an embodiment of the present invention, a high-efficiency fertilization device for tea cultivation includes a fertilizer bin, a bin support, front wheels, and a movable plate. Two front wheels are disposed at the bottom of one end of the bin support. Lifting columns are fixed to the top inner sides of both front wheels. Protective covers are slidably fitted onto each lifting column. The bottom of each protective cover is fixed to the bin support. A movable plate is fixed to one end of each lifting column extending into the protective cover. Adjustment ladders are slidably fitted inside the protective covers on both sides of each movable plate. The protective cover outside each adjustment ladder... Each section is fixed with a support plate. Several movable support rods are fixed at equal intervals on the outer side of each adjustment ladder plate. Each movable support rod is slidably sleeved inside the support plate. A return spring is sleeved on each movable support rod between the support plate and the adjustment ladder plate. Both ends of each return spring are fixed to the adjustment ladder plate and the support plate. An electromagnet plate is provided on the inner wall of the protective cover on the outer side of each support plate. Electromagnetic protrusions are fixed at both ends of each movable plate. An adjustment slot that cooperates with the electromagnetic protrusion is opened on the side of the adjustment ladder plate near the movable plate.

[0007] Preferably, the top of the fertilizer box is symmetrically and rotatably connected to a box cover plate, and the two box covers plate rotate to open and close opposite each other on the top of the fertilizer box. The bottom of the two box covers plate is fixed with a cover plate support plate, and the top of the cover plate support plate is symmetrically fixed with a fixing screw. The two fixing screws are threaded with a nut at one end that extends through to the top of the box cover plate.

[0008] Preferably, the fertilizer box is mounted on the feed box bracket, a hanging bracket is installed on the feed box bracket between the two front wheels, a rear wheel is symmetrically fixed to the bottom of the other end of the feed box bracket, limit plates are symmetrically fixed to the lifting columns below the protective cover, a discharge port is symmetrically opened at the bottom of the fertilizer box, and a material conveying component is provided at the bottom of the discharge port.

[0009] Preferably, a first rotating rod is rotatably connected inside the fertilizer box, and several stirring blades are fixed at equal intervals on the first rotating rod. A servo motor is provided at one end of the fertilizer box, and one end of the first rotating rod passes through to the outside of the fertilizer box and is fixedly connected to the output end of the servo motor.

[0010] Preferably, the two conveying components include a receiving hood, a guide cylinder, a fertilizer inlet, a cylinder frame, a second rotating rod, and a auger. The receiving hood is fixed to the bottom of the fertilizer box below the discharge port, and the bottom of the receiving hood is fixed to the top of the guide cylinder. The second rotating rod is rotatably connected to the inside of the guide cylinder, and the auger is fixed to the outer surface of the second rotating rod. The outer surface of the auger slides against the inside of the guide cylinder. One end of the guide cylinder is connected to the first rotating rod through a linkage component, and the guide cylinder is fixed to the bottom of the material box support through the cylinder frame.

[0011] Preferably, the linkage assembly includes a barrier box, a linkage rod, a linkage gear, and a linkage chain. The barrier box is fixed to the bottom surface inside the fertilizer box. The first rotating rod rotates through the barrier box. The opposite ends of the two second rotating rods extend to the outside of the guide cylinder. The two linkage rods are fixed to one end of the second rotating rod extending to the outside of the guide cylinder. Linkage gears are fixed on the first rotating rod inside the barrier box and on the sides of the two linkage rods. The two linkage gears on each side are connected by a linkage chain drive.

[0012] Preferably, both the lifting column and the movable plate are slidably sleeved with sliding rods, the top of each sliding rod is fixed to the top wall inside the protective cover, the height of each sliding rod is equal to the height inside the protective cover, and the front and rear sides of each movable plate are slidably fitted with the inside of the protective cover.

[0013] Preferably, the top of each electromagnetic protrusion and the gear shifting slot is set as a right-angled triangle, the right angle of the electromagnetic protrusion and the gear shifting slot is located at the top near the moving plate side, the thickness of the lifting column is less than the thickness of the moving plate, iron blocks are embedded in the end of the moving support rod near the electromagnet plate side and in the inner wall of the gear shifting ladder plate on the side of the gear shifting slot, and each support plate is set as a horizontally placed T-shape.

[0014] Preferably, a support frame is fixed to the side of the cylinder frame, a plow blade is fixed to the bottom of the support frame near the front wheel, a backing plate is fixed to the bottom of the support frame near the rear wheel, the bottom of the plow blade is located below the bottom of the front wheel, and the bottom of the backing plate is flush with the bottom of the front wheel.

[0015] Preferably, the tip of the plow blade faces the front wheel, and the backfill plate includes two L-shaped plates arranged opposite each other in a figure-eight pattern. The flared ends of the two plates face the plow blade, and the width of the flared ends of the two plates is greater than the width of the plow blade.

[0016] The beneficial effects of this invention are: 1. This invention, through the automatic adaptive design of the front wheels, can adapt to the terraced terrain of the tea field in the fertilization sequence from high to low, without the need to pre-measure the height difference of the terraced tea field, reducing the preparation work required for fertilization. Moreover, when completing the step crossing, it can automatically restore the fertilizer box to the horizontal, so that the fertilizer box can remain stable and horizontal during the fertilization process, thereby facilitating the operator to pull the equipment and greatly improving the applicability of the fertilization device. 2. This invention uses a plow and a soil covering board in conjunction with the fertilization port to turn over the soil in the tea field before fertilization, and then covers the fertilizer with soil using the soil covering board. This ensures that the fertilizer is closer to the tea tree roots and prevents the fertilizer from being blown away from the predetermined position by wind or rain after fertilization, thus ensuring the fertilization effect of the fertilization device. 3. By installing stirring blades inside the fertilizer tank, the fertilizer inside can be stirred during the fertilization process. This keeps the solid fertilizer loose and can also stir the liquid fertilizer, thus making the fertilization device adaptable to both solid and liquid fertilizers and further improving the applicability of the fertilization device. 4. This invention uses a spiral that rotates synchronously with the stirring blades to transport fertilizer to both sides of the fertilization device in conjunction with the feed tube. This allows the fertilizer to be closer to the tea tree roots during fertilization, further ensuring the fertilization effect of the fertilization device. In addition, the fully openable and closable design of the top of the fertilizer box makes it easy to clean the inside of the fertilizer box and avoids cross-contamination between fertilizers. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the fertilizer application device proposed in this invention; Figure 2 This is a bottom view of the overall structure of the fertilization device proposed in this invention; Figure 3 This is a schematic diagram of the front wheel of the fertilizer applicator proposed in this invention descending. Figure 4 This is a schematic diagram of the fertilizer box of the fertilizer application device proposed in this invention when it is opened; Figure 5 This is a partial structural schematic diagram of the fertilization device proposed in this invention; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the diagram; Figure 7 This is a schematic diagram of the fertilizer box of the fertilizer application device proposed in this invention from another perspective when it is opened. Figure 8 This is a schematic diagram of the feed cylinder of the fertilizer application device proposed in this invention; Figure 9 This is a bottom view schematic diagram of the structure of the feed cylinder of the fertilizer application device proposed in this invention.

[0018] In the diagram: 1. Fertilizer bin; 2. Bin support; 3. Front wheel; 4. Rear wheel; 5. Protective cover; 6. Hanging frame; 7. Lifting column; 8. Adjusting ladder plate; 9. Electromagnetic convex plate; 10. Adjusting slot; 11. Moving support rod; 12. Support plate; 13. Return spring; 14. Electromagnetic plate; 15. Discharge port; 16. Receiving cover; 17. Guide cylinder; 18. Fertilizer inlet; 19. Cylinder frame; 20. Support frame; 21. Plow; 22. Covering plate; 23. Bin cover plate; 24. Cover plate support plate; 25. Fixing screw; 26. First rotating rod; 27. Mixing blade; 28. Barrier box; 29. ​​Second rotating rod; 30. Spiral; 31. Linkage rod; 32. Servo motor; 33. Linkage gear; 34. Linkage chain; 35. Limiting plate; 36. Moving plate; 37. Sliding rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0020] Example 1: refer to Figure 1-9A high-efficiency fertilization device for tea cultivation includes a fertilizer bin 1, a bin support 2, front wheels 3, and a movable plate 36. Two front wheels 3 are located at the bottom of one end of the bin support 2. A mounting bracket 6 is installed on the bin support 2 between the two front wheels 3. When fertilization is needed, a drive device is mounted on the mounting bracket 6. After mounting the drive device, the bin support 2 can be controlled manually. Lifting columns 7 are fixed to the top inner sides of both front wheels 3. The lifting columns 7 are made of a heavy material, such as a solid iron block, and slide on the lifting columns 7. A protective cover 5 is fitted onto the material box bracket 2. The bottom of the protective cover 5 is fixed to the material box bracket 2. A rectangular sliding groove is opened at the bottom of the protective cover 5 to cooperate with the lifting column 7, ensuring that the protective cover 5 can only move up and down inside the protective cover 5. A movable plate 36 is fixed to one end of each lifting column 7 that extends into the protective cover 5. The movable plate 36 moves with the lifting column 7 inside the protective cover 5. Adjustable ladder plates 8 are slidably fitted inside the protective cover 5 on both sides of each movable plate 36. They are used to cooperate with the electromagnetic convex plate 9 for adaptive adjustment, so as to adapt to the stepped tea field. The adjustable ladder plates 8 move up and down. The ends slide against the upper and lower ends of the inner wall of the protective cover 5 respectively. The adjusting ladder plate 8 moves to both sides under the squeezing and pushing of the electromagnetic convex plate 9. After the squeezing force is released, it moves back to both sides of the moving plate 36 under the pushing of the return spring 13. A support plate 12 is fixed inside the protective cover 5 on the outside of each adjusting ladder plate 8. Several moving support rods 11 are fixed at equal intervals on the outside of each adjusting ladder plate 8. Each moving support rod 11 is slidably sleeved inside the support plate 12. A return spring 1 is sleeved on the moving support rod 11 between the support plate 12 and the adjusting ladder plate 8. 3. Each return spring 13 is fixed at both ends to the adjusting ladder plate 8 and the support plate 12. Each support plate 12 has an electromagnet plate 14 on the inner wall of the protective cover 5 on the outer side. The electromagnet plate 14 pulls the adjusting ladder plate 8 to move to both sides to ensure that the front wheel 3 can be reset after the step is completed. The electromagnet plate 14 and the electromagnetic convex plate 9 are connected to the power storage through wires. Each moving plate 36 has an electromagnetic convex plate 9 fixed at both ends. The adjusting ladder plate 8 has an adjusting slot 10 that cooperates with the electromagnetic convex plate 9 on the side near the moving plate 36.

[0021] In this embodiment, the top of each electromagnetic convex plate 9 and the shifting slot 10 is set as a right-angled triangle. The right angle of the electromagnetic convex plate 9 and the shifting slot 10 is located at the top near the moving plate 36, so that after the electromagnetic convex plate 9 engages with the shifting slot 10, the electromagnetic convex plate 9 is subjected to an upward force, which acts vertically upward on the shifting ladder plate 8, and will not push the shifting ladder plate 8 to the sides. The thickness of the lifting column 7 is less than the thickness of the moving plate 36 to avoid the lifting column 7 affecting the normal movement of the shifting ladder plate 8. Iron blocks are embedded in the end of the moving support rod 11 near the electromagnet plate 14 and in the inner wall of the shifting ladder plate 8 on the side of the shifting slot 10. After the electromagnetic convex plate 9 or the support plate 12 is energized, the shifting ladder plate 8 or the moving support rod 11 can engage with the electromagnetic convex plate 9 or the moving support rod 11. The electromagnetic convex plate 9 or the movable support rod 11 is attracted and fixed. Each support plate 12 is set as a horizontally placed T-shape to prevent the movable support rod 11 from separating from the support plate 12, thereby ensuring the support of the adjusting ladder plate 8. The fertilizer box 1 is installed on the material box bracket 2. The two rear wheels 4 are fixed to the bottom of the other end of the material box bracket 2. Limit plates 35 are symmetrically fixed on the lifting column 7 below the protective cover 5. The bottom of the fertilizer box 1 is symmetrically provided with discharge ports 15. The lifting column 7 and the movable plate 36 are slidably sleeved with sliding rods 37. The top of each sliding rod 37 is fixed to the top wall inside the protective cover 5. The height of each sliding rod 37 is equal to the height inside the protective cover 5. The front and rear sides of each movable plate 36 are slidably attached to the inside of the protective cover 5.

[0022] When fertilizing tea trees in a flat tea field, the electromagnetic convex plate 9 engages with the adjusting slot 10 as the material box support 2 moves across the flat terrain. The electromagnetic convex plate 9 remains energized and is attracted and fixed to the adjusting ladder plate 8. With the horizontal design of the top of the electromagnetic convex plate 9 and the adjusting slot 10, and the support of the limiting plate 35, the bottoms of the front wheel 3 and the rear wheel 4 are flush, supporting the material box support 2. When fertilizing tea trees in a terraced tea field, the process proceeds gradually from higher to lower levels, within the same terrace... When fertilizing according to the terrain, the operation is the same as in flat areas. When it is necessary to move down to the next terrace, first move the front wheel 3 to the top of the next terrace. Under the weight of the front wheel 3 and the lifting column 7, turn off the power to the electromagnetic convex plate 9, pull the moving plate 36 and the lifting column 7 down on the slide rod 37, and at the same time drive the electromagnetic convex plate 9 to press the adjusting ladder plate 8 down. After the adjusting ladder plate 8 is pressed, the compression return spring 13 moves to both sides. During the movement, it drives the moving support rod 11 to the support plate 1. 2. Internal movement: After the current wheel 3 moves to the bottom of the next step, the downward pull generated by the weight of the lifting column 7 and the moving plate 36 disappears. Under the push of the return spring 13, the adjusting ladder plate 8 moves closer to the moving plate 36 again, causing the electromagnetic convex plate 9 to re-engage inside the adjusting slot 10. This continues to push the material box bracket 2, so that the rear wheel 4 is also above the next tea field step. At this time, the electromagnet plate 14 is energized, and under the action of magnetic attraction, the moving support rod 11 pulls the adjusting ladder plate 8 to move to both sides. When the limit of plate 8 on moving plate 36 is released, under the action of gravity of fertilizer box 1, it drives the box support 2 to move down, and drives the protective cover 5 to move down on the lifting column 7 until it abuts against the limit plate 35. At this time, the electromagnet plate 14 is energized and closed, and the electromagnetic convex plate 9 is energized and opened. Under the action of the restoring force of the reset spring 13 and the magnetic attraction of the electromagnetic convex plate 9, the adjusting ladder plate 8 moves back to both sides of moving plate 36, so that the bottom of the front wheel 3 and the rear wheel 4 are level, and the box support 2 returns to horizontal.

[0023] In this embodiment, the top of the fertilizer bin 1 is symmetrically and rotatably connected with a bin cover plate 23. Each bin cover plate 23 has a handle fixed on both sides. The two bin cover plates 23 rotate to open and close opposite each other at the top of the fertilizer bin 1. Through the openable and closable design of the bin cover plate 23, the bin cover plate 23 can be opened to facilitate the addition of fertilizer into the fertilizer bin 1, and also to facilitate the cleaning of the fertilizer bin 1 after each cleaning. The bottom of the two bin cover plates 23 on opposite sides is fixed with a cover plate support plate 24 on the inner wall of the fertilizer bin 1. The top of the cover plate support plate 24 is symmetrically fixed with a fixing screw 25. The two bin cover plates 23 on opposite sides are provided with a slot that cooperates with the fixing screw 25. The two fixing screws 25 are threaded with nuts at the end that extends to the top of the bin cover plate 23. After feeding or cleaning, the bin cover plate 23 can be closed and fixed by the fixing screw 25 and the nut.

[0024] Example 2: A first rotating rod 26 is rotatably connected inside the fertilizer tank 1. Several stirring blades 27 are fixed at equal intervals on the first rotating rod 26. A servo motor 32 is installed at one end of the fertilizer tank 1. One end of the first rotating rod 26 passes through to the outside of the fertilizer tank 1 and is fixedly connected to the output end of the servo motor 32. A sealing plug is installed at the connection between the first rotating rod 26 and the fertilizer tank 1 to prevent fertilizer leakage. After the fertilizer is put into the fertilizer tank 1, the servo motor 32 is turned on to drive the first rotating rod 26 to rotate, thereby driving the stirring blades 27 to stir the fertilizer inside the fertilizer tank 1, which can loosen the fertilizer or mix the fertilizer.

[0025] Example 3: A material conveying assembly is provided at the bottom of the discharge port 15. The two material conveying assemblies include a receiving cover 16, a guide cylinder 17, a fertilizer inlet 18, a cylinder frame 19, a second rotating rod 29, and a auger 30. The receiving cover 16 is fixed to the bottom of the fertilizer box 1 below the discharge port 15. The bottom of the receiving cover 16 is fixed to the top of the guide cylinder 17. The second rotating rod 29 is rotatably connected to the inside of the guide cylinder 17. The auger 30 is fixed to the outer surface of the second rotating rod 29. The outer surface of the auger 30 slides against the inside of the guide cylinder 17. One end of the guide cylinder 17 is open to the outside of the fertilizer box 17. The material guide cylinder 17 is connected to the first rotating rod 26 via the linkage component and fixed to the bottom of the material box bracket 2 via the cylinder frame 19. When fertilizing, the spiral body 30 can drive the fertilizer to the top of the fertilizer inlet 18 before fertilizing, which is closer to the tea tree roots. In use, fertilization can be carried out on one side by placing a sealing plate above the discharge port 15 on one side. The bottom of the cover plate is provided with a rubber block that matches the discharge port 15. When placing it, the rubber block is inserted into the discharge port 15 to seal the discharge port 15 on that side.

[0026] In this embodiment, the linkage assembly includes a barrier box 28, a linkage rod 31, a linkage gear 33, and a linkage chain 34. The barrier box 28 is fixed to the bottom surface inside the fertilizer box 1. The first rotating rod 26 rotates through the barrier box 28, and the opposite ends of the two second rotating rods 29 extend to the outside of the guide cylinder 17. Sealing plugs are provided at the connections between the first rotating rod 26 and the barrier box 28, and between the second rotating rods 29 and the guide cylinder 17, to ensure that the first rotating rod 26 and the second rotating rod 29 can rotate stably while preventing fertilizer from passing through the gap between the first rotating rod 26 and the barrier box 28, and between the second rotating rod 29 and the guide cylinder 17. The gap between the rotating rod 29 and the guide cylinder 17 is exposed. Both linkage rods 31 are fixed to one end of the second rotating rod 29 extending to the outside of the guide cylinder 17. Linkage gears 33 are fixed on the first rotating rod 26 inside the barrier box 28 and on the sides of the two linkage rods 31. The two linkage gears 33 on each side are connected by a linkage chain 34. When the first rotating rod 26 rotates, it drives the spiral body 30 to rotate synchronously through the linkage gears 33 and the linkage chain 34. This makes the fertilizer application device easier to control and avoids the increased difficulty of operation caused by too many drive sources.

[0027] Example 4: A support frame 20 is fixed to the side of the cylinder frame 19. A plow shovel 21 is fixed to the bottom of the support frame 20 near the front wheel 3. A soil covering plate 22 is fixed to the bottom of the support frame 20 near the rear wheel 4. The bottom of the plow shovel 21 is located below the bottom of the front wheel 3. The bottom of the soil covering plate 22 is flush with the bottom of the front wheel 3. The tip of the plow shovel 21 faces the front wheel 3. The soil covering plate 22 includes two L-shaped plates arranged opposite each other. The two plates are arranged in a figure-eight pattern. The flared ends of the two plates face the plow shovel 21. The width of the flared ends of the two plates is greater than the width of the plow shovel 21. During the movement of the material box support 2, the plow shovel 21 located at the front in the forward direction turns over the soil. Then, fertilizer falls into the turned soil through the fertilizer inlet 18. The material box support 2 continues to move. The soil covering plate 22 on the rear side pushes the turned soil to close and covers the fertilizer to prevent fertilizer loss.

[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 high-efficiency fertilization device for tea cultivation, characterized in that, The system includes a fertilizer bin (1), a bin support (2), front wheels (3), and a movable plate (36). Two front wheels (3) are located at the bottom of one end of the bin support (2). Lifting columns (7) are fixed to the top inner sides of both front wheels (3). Protective covers (5) are slidably fitted onto each lifting column (7). The bottom of the protective covers (5) is fixed to the bin support (2). A movable plate (36) is fixed to one end of each lifting column (7) extending into the protective cover (5). Adjustment ladders (8) are slidably fitted inside the protective covers (5) on both sides of each movable plate (36). A support plate (12) is fixed inside the protective cover (5) on the outer side of each adjustment ladder (8). Each adjustment ladder (8) is further supported by a support plate (12). Several movable support rods (11) are fixed at equal intervals on the outer side of the step plate (8). Each movable support rod (11) is slidably sleeved inside the support plate (12). A return spring (13) is sleeved on the movable support rod (11) between the support plate (12) and the step plate (8). Both ends of each return spring (13) are fixed to the step plate (8) and the support plate (12). An electromagnet plate (14) is provided on the inner wall of the protective cover (5) on the outer side of each support plate (12). An electromagnetic protrusion plate (9) is fixed at both ends of each movable plate (36). A step adjustment slot (10) that cooperates with the electromagnetic protrusion plate (9) is opened on the side of the step plate (8) near the movable plate (36).

2. The high-efficiency fertilization device for tea cultivation according to claim 1, characterized in that, The top of the fertilizer box (1) is symmetrically connected to a box cover plate (23). The two box covers plate (23) rotate to open and close opposite each other on the top of the fertilizer box (1). The bottom of the two box covers plate (23) is fixed with a cover plate support plate (24). The top of the cover plate support plate (24) is symmetrically fixed with a fixing screw (25). The two fixing screws (25) are threaded with nuts at one end that extends through to the top of the box cover plate (23).

3. The high-efficiency fertilization device for tea cultivation according to claim 1, characterized in that, The fertilizer box (1) is installed on the box support (2). A hanging bracket (6) is installed on the box support (2) between the two front wheels (3). A rear wheel (4) is symmetrically fixed at the bottom of the other end of the box support (2). Limit plates (35) are symmetrically fixed on the lifting column (7) below the protective cover (5). A discharge port (15) is symmetrically opened at the bottom of the fertilizer box (1). A material conveying component is provided at the bottom of the discharge port (15).

4. The high-efficiency fertilization device for tea cultivation according to claim 3, characterized in that, The fertilizer box (1) is rotatably connected to a first rotating rod (26), and several stirring blades (27) are fixed at equal intervals on the first rotating rod (26). A servo motor (32) is provided at one end of the fertilizer box (1), and one end of the first rotating rod (26) passes through to the outside of the fertilizer box (1) and is fixedly connected to the output end of the servo motor (32).

5. The high-efficiency fertilization device for tea cultivation according to claim 4, characterized in that, The two conveying components include a receiving cover (16), a guide cylinder (17), a fertilizer inlet (18), a cylinder frame (19), a second rotating rod (29), and a spiral body (30). The receiving cover (16) is fixed to the bottom of the fertilizer box (1) below the discharge port (15). The bottom of the receiving cover (16) is fixed to the top of the guide cylinder (17). The second rotating rod (29) is rotatably connected to the inside of the guide cylinder (17). The spiral body (30) is fixed to the outer surface of the second rotating rod (29). The outer surface of the spiral body (30) slides against the inside of the guide cylinder (17). One end of the guide cylinder (17) is connected to the first rotating rod (26) through a linkage component. The guide cylinder (17) is fixed to the bottom of the material box support (2) through the cylinder frame (19).

6. The high-efficiency fertilization device for tea cultivation according to claim 5, characterized in that, The linkage assembly includes a barrier box (28), a linkage rod (31), a linkage gear (33), and a linkage chain (34). The barrier box (28) is fixed inside the bottom surface of the fertilizer box (1). The first rotating rod (26) rotates through the barrier box (28). The opposite ends of the two second rotating rods (29) extend to the outside of the guide cylinder (17). The two linkage rods (31) are fixed at one end of the second rotating rods (29) extending to the outside of the guide cylinder (17). The first rotating rod (26) inside the barrier box (28) and the sides of the two linkage rods (31) are fixed with linkage gears (33). The two linkage gears (33) on each side are connected by a linkage chain (34).

7. The high-efficiency fertilization device for tea cultivation according to claim 3, characterized in that, The lifting column (7) and the moving plate (36) are both slidably fitted with sliding rods (37). The top of each sliding rod (37) is fixed to the top wall inside the protective cover (5). The height of each sliding rod (37) is equal to the height inside the protective cover (5). The front and rear sides of each moving plate (36) are slidably fitted inside the protective cover (5).

8. The high-efficiency fertilization device for tea cultivation according to claim 1, characterized in that, The top of each of the electromagnetic convex plates (9) and the gear shifting slot (10) is set as a right-angled triangle. The right angle of the electromagnetic convex plates (9) and the gear shifting slot (10) is located at the top of the side close to the moving plate (36). The thickness of the lifting column (7) is less than the thickness of the moving plate (36). Iron blocks are embedded in the end of the moving support rod (11) close to the electromagnet plate (14) and in the inner wall of the gear shifting ladder plate (8) on the side of the gear shifting slot (10). Each of the support plates (12) is set as a horizontally placed T-shape.

9. The high-efficiency fertilization device for tea cultivation according to claim 5, characterized in that, A support frame (20) is fixed to the side of the cylindrical frame (19). A plow shovel (21) is fixed to the bottom of the support frame (20) near the front wheel (3). A backing plate (22) is fixed to the bottom of the support frame (20) near the rear wheel (4). The bottom of the plow shovel (21) is located below the bottom of the front wheel (3). The bottom of the backing plate (22) is flush with the bottom of the front wheel (3).

10. The high-efficiency fertilization device for tea cultivation according to claim 9, characterized in that, The tip of the plow blade (21) faces the front wheel (3), and the backfill plate (22) includes two L-shaped plates arranged opposite each other. The two plates are arranged in a figure-eight pattern, and the flared ends of the two plates face the plow blade (21). The width of the flared ends of the two plates is greater than the width of the plow blade (21).

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