A fertilizer device for slow-release fertilizer

Abstract

The application discloses a kind of planting slow-release fertilizer's fertilizing device in the technical field of agricultural equipment, including operating lever, operating lever bottom end fixedly connected with connecting cylinder, and connecting cylinder bottom end fixedly connected with fertilizing cylinder;Fertilizer cylinder is symmetrically arranged at the left and right sides of connecting cylinder, and fertilizing cylinder is symmetrically fixedly connected with material conveying pipe at the left and right ends, and the left and right sides material conveying pipe are fixedly connected with the fertilizer cylinder at the left and right sides respectively;Digging mechanism is arranged in fertilizing cylinder, and digging mechanism is used to dig a fertilizing pit on ground;Transportation mechanism is arranged in material conveying pipe, and transportation mechanism is used to transport fertilizer in fertilizer cylinder into fertilizing cylinder;First drive mechanism is arranged in connecting cylinder, and first drive mechanism is used to drive digging mechanism to run and drive transportation mechanism to run while digging pit by digging mechanism;The device can automatically dig soil and fill soil, and the position of digging soil is relatively accurate, so as to realize the effect of burying slow-release fertilizer into soil, which can effectively save manpower and improve the efficiency of fertilization.

Description

Technical Field

[0001] This invention relates to the field of agricultural equipment technology, specifically to a fertilization device for slow-release fertilizer used in planting. Background Technology

[0002] The term "release" refers to the process by which nutrients are transformed from chemical substances into an effective form that plants can directly absorb and utilize (such as dissolution, hydrolysis, degradation, etc.); "slow release" refers to the process by which the release rate of chemical nutrients is much lower than the release rate of readily soluble fertilizers after they are applied to the soil and transformed into plant-available nutrients; slow-release fertilizer is a type of fertilizer that dissolves slowly.

[0003] Because slow-release fertilizers dissolve slowly, if they are simply sprinkled on the soil surface during planting, they are easily washed away by rainwater due to their long-term presence. Therefore, slow-release fertilizers usually need to be buried in the soil. Currently, the application of slow-release fertilizers typically requires manual labor, such as digging a pit with a hoe, injecting a certain amount of slow-release fertilizer into the pit, and then filling the pit back in. This process is time-consuming and labor-intensive. Furthermore, it is difficult to ensure the accuracy of the pit location and the consistency of the fertilizer amount in each pit when digging manually. Summary of the Invention

[0004] The purpose of this invention is to provide a fertilization device for slow-release fertilizer for planting, so as to solve the problems mentioned in the background art, which require digging holes with a hoe, fertilizing and then filling the holes when manually applying slow-release fertilizer, which is time-consuming and laborious, and the location of the holes is not easy to control, and the amount of fertilizer applied each time is not easy to control.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fertilization device for slow-release fertilizer for planting, comprising an operating rod, a connecting cylinder fixedly connected to the bottom end of the operating rod, and a fertilizer cylinder fixedly connected to the bottom end of the connecting cylinder; fertilizer cylinders are symmetrically arranged on the left and right sides of the connecting cylinder, and conveying pipes are symmetrically fixedly connected to the left and right ends of the fertilizer cylinder, with the conveying pipes on the left and right sides respectively fixedly connected to the fertilizer cylinders on the left and right sides; a digging mechanism is provided inside the fertilizer cylinder, which is used to dig a fertilizer pit in the ground; a transport mechanism is provided inside the conveying pipe, which is used to transport the fertilizer in the fertilizer cylinder to the fertilizer cylinder; a first driving mechanism is provided inside the connecting cylinder, which is used to drive the digging mechanism to operate and drive the transport mechanism to operate simultaneously with the digging mechanism digging the pit.

[0006] The digging mechanism includes a limiting cylinder located inside the fertilizer cylinder and fixedly connected to it; a collection cylinder is slidably connected inside the limiting cylinder; a collection port is opened at the bottom of the fertilizer cylinder, and the inner diameter of the collection port is equal to the inner diameter of the limiting cylinder; a soil-pushing mechanism is provided inside the limiting cylinder, which is used to push the soil out of the collection cylinder after the collection cylinder has collected the soil from the ground.

[0007] The bulldozing mechanism includes four push plates, which are arranged in a circular array inside the limiting cylinder and are all fixedly connected to the limiting cylinder; the four push plates are fitted with the collection cylinder with a clearance.

[0008] The transport mechanism includes a rotating plate located inside the conveying pipe and rotatably connected to the conveying pipe, with the rotating plate in contact with the inner wall of the conveying pipe; a first bevel gear is symmetrically and coaxially fixedly connected to the front and rear ends of the rotating plate, a second bevel gear meshing with the first bevel gear, the second bevel gear being rotatably connected to the conveying pipe and a gear being coaxially and fixedly connected to the second bevel gear.

[0009] The first driving mechanism includes a motor located inside the connecting cylinder and fixedly connected to the connecting cylinder. A threaded rod is fixedly connected to the bottom end of the motor output shaft. A threaded cylinder is sleeved on the surface of the threaded rod. The threaded rod and the threaded cylinder are threadedly engaged, and the threaded rod has self-locking properties. The threaded cylinder is slidably connected to the fertilizer cylinder, and the bottom end of the threaded cylinder is fixedly connected to the collection cylinder. A second driving mechanism is provided on the threaded cylinder. The second driving mechanism is used to drive the rotating plates on the left and right sides to rotate when the threaded cylinder moves downward.

[0010] The second driving mechanism includes a connecting frame, with slide rails symmetrically fixedly connected to the left and right sides of the connecting frame. Slider blocks are symmetrically slidably connected to the front and rear sides of the slide rails, and racks are fixedly connected to the sliders. A first spring is provided between the racks on the front and rear sides, with its front and rear ends respectively fixedly connected to the racks on the front and rear sides. The racks on the front and rear sides respectively mesh with gears on the front and rear sides. A disengagement mechanism is provided on the slide rail, which is used to disengage the rack from the gear when the rack moves and the driving gear is reset, ensuring that the gear rotates in one direction.

[0011] The release mechanism includes two pressing blocks, which are symmetrically distributed on the left and right sides above the rack and are fixedly connected to the rack. A first pressing rod is provided at the bottom of the rack, which is located directly below the two pressing blocks on the rack. A fixing mechanism is provided on the slider, which is used to lock the slider after the rack moves to the bottom position and is pressed by the first pressing rod through the pressing blocks, and to unlock the slider after the rack resets.

[0012] The fixing mechanism includes a slot, which is formed on the slider; symmetrically slidably connected to the slider on the slide rail on the left and right sides, a second spring is fixedly connected to the slot, and the other end of the second spring is fixedly connected to the slide rail; a second extrusion rod is provided above the slot, and the second extrusion rod is fixedly connected to the fertilizer cylinder.

[0013] The fertilizer cylinder has four sliding grooves on its side wall, and the four first extrusion rods at the bottom of the four racks are slidably connected to the four sliding grooves respectively; a connecting ring is sleeved on the outside of the fertilizer cylinder, and the connecting ring is fixedly connected to the four first extrusion rods and the connecting ring is in clearance fit with the fertilizer cylinder; the connecting ring is provided with an adjustment mechanism, which is used to adjust the height of the four first extrusion rods.

[0014] The adjusting mechanism includes a rotating frame, which is rotatably connected to a connecting ring; the outer surface of the fertilizer cylinder is provided with an external thread, and the rotating frame is threadedly engaged with the external thread; the external thread has self-locking properties.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention uses an operating lever to place the fertilizer cylinder onto the land requiring fertilization. Then, a first drive mechanism is activated, which drives a digging mechanism to excavate a pit at the bottom of the fertilizer cylinder. Simultaneously, the first drive mechanism drives a transport mechanism to transport fertilizer from the left and right fertilizer cylinders into the fertilizer cylinder. After digging, the first drive mechanism resets the digging mechanism, which then moves the excavated soil into the fertilizer cylinder. Once the digging mechanism is inside the fertilizer cylinder, the fertilizer falls directly into the pit, which is then filled back in. This device has a simple structure, is easy to operate, and can automatically dig and fill soil with high precision, effectively burying slow-release fertilizer in the soil, saving manpower and improving fertilization efficiency.

[0017] 2. This invention allows for adjustment of the vertical position of the rotating frame by rotating it under the action of the external thread. When the rotating frame moves upward, it drives the four first pressing rods upward through the connecting ring. When the four first pressing rods move upward, they engage with the pressing blocks on the rack in advance when the rack moves downward, causing the rack to disengage from the gear in advance. This reduces the number of rotations of the gear and the rotating plate, thus reducing the amount of fertilizer transported into the fertilizer cylinder. Rotating the rotating frame can adjust the amount of fertilizer applied, and the amount of fertilizer applied each time is equal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the fertilizer application cylinder in this invention;

[0020] Figure 3 This is a cross-sectional view of the fertilizer applicator in this invention.

[0021] Figure 4 This is a further cross-sectional structural schematic diagram of the fertilizer application cylinder in this invention;

[0022] Figure 5 This is a cross-sectional view of the fertilizer cylinder in this invention.

[0023] Figure 6 This is a schematic diagram of the disassembled structure of the fertilizer cylinder in this invention;

[0024] Figure 7 This is a schematic diagram of the transportation mechanism in this invention;

[0025] Figure 8 This is a schematic diagram of the structure of the second driving mechanism in this invention;

[0026] Figure 9 for Figure 8 A magnified structural diagram of A in the diagram.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Operating lever; 2. Connecting cylinder; 3. Fertilizer cylinder; 4. Fertilizer cylinder; 5. Feeding pipe; 6. Limiting cylinder; 7. Collection cylinder; 8. Collection port; 9. Push plate; 10. Rotating plate; 11. First bevel gear; 12. Second bevel gear; 13. Gear; 14. Motor; 15. Threaded rod; 16. Threaded cylinder; 17. Connecting frame; 18. Slide rail; 19. Slider; 20. Rack; 21. First spring; 22. Extrusion block; 23. First extrusion rod; 24. Slot; 25. Block; 26. Second spring; 27. Second extrusion rod; 28. Slide groove; 29. ​​Connecting ring; 30. Rotating frame; 31. External thread. Detailed Implementation

[0029] Please see Figure 1-9 This invention provides a technical solution: a fertilization device for slow-release fertilizer for planting, including an operating rod 1, a connecting cylinder 2 fixedly connected to the bottom end of the operating rod 1, and a fertilizer cylinder 3 fixedly connected to the bottom end of the connecting cylinder 2; fertilizer cylinders 4 are symmetrically arranged on the left and right sides of the connecting cylinder 2, and conveying pipes 5 are symmetrically fixedly connected to the left and right ends of the fertilizer cylinder 3, respectively, and the conveying pipes 5 on the left and right sides are fixedly connected to the fertilizer cylinders 4 on the left and right sides; a hole-digging mechanism is provided inside the fertilizer cylinder 3, which is used to dig a fertilizer hole in the ground; a transport mechanism is provided inside the conveying pipes 5, which is used to transport the fertilizer in the fertilizer cylinder 4 into the fertilizer cylinder 3; a first driving mechanism is provided inside the connecting cylinder 2, which is used to drive the hole-digging mechanism to operate and drive the transport mechanism to operate simultaneously with the hole-digging mechanism digging the hole;

[0030] like Figure 1-2As shown, during operation, when slow-release fertilizer needs to be applied, the user uses the operating lever 1 to place the fertilizer cylinder 3 against the land to be fertilized, and then activates the first drive mechanism. The first drive mechanism drives the digging mechanism to dig a hole in the soil at the bottom of the fertilizer cylinder 3. While the digging mechanism is digging, the first drive mechanism also drives the transport mechanism to transport the fertilizer from the fertilizer cylinders 4 on both sides into the fertilizer cylinder 3. After the digging mechanism completes digging, the first drive mechanism drives the digging mechanism to reset, and the digging mechanism will then bring the excavated soil into the fertilizer cylinder 3. Once the digging mechanism moves into the fertilizer cylinder 3, the fertilizer in the fertilizer cylinder 3 will fall directly into the excavated hole, and then the digging mechanism will fill the hole with the excavated soil. This device has a simple structure, is easy to operate, and can automatically dig and fill soil, thus achieving the effect of burying slow-release fertilizer in the soil, effectively saving manpower and improving fertilization efficiency.

[0031] like Figure 3-5 As shown, as a further embodiment of the present invention, the digging mechanism includes a limiting cylinder 6, which is located inside the fertilizer cylinder 3 and is fixedly connected to the fertilizer cylinder 3; a collection cylinder 7 is slidably connected inside the limiting cylinder 6; a collection port 8 is opened at the bottom end of the fertilizer cylinder 3, and the inner diameter of the collection port 8 is equal to the inner diameter of the limiting cylinder 6; a bulldozing mechanism is provided inside the limiting cylinder 6, which is used to push the soil out of the collection cylinder 7 after the soil on the ground is collected by the collection cylinder 7;

[0032] The bulldozing mechanism includes four push plates 9, which are arranged in a circular array inside the limiting cylinder 6 and are all fixedly connected to the limiting cylinder 6; the four push plates 9 are fitted with the collection cylinder 7 with clearance.

[0033] During operation, when digging a pit, the collecting cylinder 7 is driven to move downwards within the limiting cylinder 6. When the collecting cylinder 7 reaches a position where it is in contact with the ground, the limiting cylinder 6 simultaneously contacts the fertilizer cylinder 3 and the limiting cylinder 6. As the collecting cylinder 7 continues to move downwards, it begins to insert into the soil. When the collecting cylinder 7 is fully inserted into the soil, its upper part remains within the limiting cylinder 6. When the collecting cylinder 7 is driven upwards, it moves the soil inside upwards. When the bottom part of the collecting cylinder 7 reaches the position inside the limiting cylinder 6, the soil collected inside the collecting cylinder 7 begins to contact the push plate 9. As the collecting cylinder 7 continues to move upwards, the soil inside the collecting cylinder 7 moves downwards relative to the push plate 9 under the action of the push plate 9. When the collecting cylinder 7 reaches its uppermost position, the soil inside the collecting cylinder 7 is completely pushed out of the collecting cylinder 7 by the push plate 9 and falls directly into the pit.

[0034] like Figure 7As shown, as a further embodiment of the present invention, the transport mechanism includes a rotating plate 10, which is located inside the conveying pipe 5 and is rotatably connected to the conveying pipe 5. The rotating plate 10 is in contact with the inner wall of the conveying pipe 5. A first bevel gear 11 is symmetrically and coaxially fixedly connected to the front and rear ends of the rotating plate 10. A second bevel gear 12 meshes with the first bevel gear 11. The second bevel gear 12 is rotatably connected to the conveying pipe 5 and a gear 13 is coaxially fixedly connected to the second bevel gear 12.

[0035] During operation, the rotation of the gears 13 on the left and right sides of the conveying pipe 5 will drive the second bevel gear 12 to rotate. When the second bevel gear 12 rotates, it will drive the first bevel gear 11 to rotate. The first bevel gear 11 will drive the rotating plate 10 to rotate. When the rotating plate 10 rotates, it will transport the fertilizer in the conveying pipe 5 to the fertilizer cylinder 3.

[0036] like Figure 6 As shown, as a further embodiment of the present invention, the first driving mechanism includes a motor 14, which is located inside the connecting cylinder 2 and is fixedly connected to the connecting cylinder 2. A threaded rod 15 is fixedly connected to the bottom end of the output shaft of the motor 14. A threaded cylinder 16 is sleeved on the surface of the threaded rod 15. The threaded rod 15 and the threaded cylinder 16 are threadedly engaged and the threaded rod 15 has self-locking properties. The threaded cylinder 16 is slidably connected to the fertilizer cylinder 3 and its bottom end is fixedly connected to the collection cylinder 7. A second driving mechanism is provided on the threaded cylinder 16. The second driving mechanism is used to drive the rotating plates 10 on the left and right sides to rotate when the threaded cylinder 16 moves downward.

[0037] During operation, when the motor 14 is started, the motor 14 drives the threaded rod 15 to rotate, and the threaded rod 15 will drive the threaded cylinder 16 to slide downward. When the threaded cylinder 16 moves downward, it will drive the collection cylinder 7 to move downward. When the collection cylinder 7 moves to the bottom position, the motor 14 is started to drive the threaded rod 15 to rotate in the opposite direction, so that the collection cylinder 7 can be driven to move upward and reset through the threaded cylinder 16.

[0038] like Figure 5 , Figure 8-9 As shown, as a further embodiment of the present invention, the second driving mechanism includes a connecting frame 17, with slide rails 18 symmetrically fixedly connected to the left and right sides of the connecting frame 17, and sliders 19 symmetrically slidably connected to the front and rear sides of the slide rails 18, with racks 20 fixedly connected to the sliders 19; a first spring 21 is provided between the front and rear racks 20, with the front and rear ends of the first spring 21 respectively fixedly connected to the front and rear racks 20; the front and rear racks 20 respectively mesh with the front and rear gears 13; a disengagement mechanism is provided on the slide rails 18, which is used to disengage the racks 20 from the gears 13 when the racks 20 move and reset after moving the driving gears 13, ensuring that the gears 13 rotate in one direction only;

[0039] The release mechanism includes two pressing blocks 22, which are symmetrically distributed on the left and right sides above the rack 20 and are fixedly connected to the rack 20. A first pressing rod 23 is provided at the bottom of the rack 20, which is located directly below the two pressing blocks 22 on the rack 20. A fixing mechanism is provided on the slider 19. The fixing mechanism is used to lock the slider 19 after the rack 20 moves to the bottom position and is pressed by the first pressing rod 23 through the pressing blocks 22, and the slider 19 slides. After the rack 20 is reset, the slider 19 is unlocked.

[0040] During operation, when the threaded cylinder 16 moves downward, it drives the connecting frame 17 downward. The connecting frame 17, via the slide rails 18 on both sides, drives the four racks 20 downward. When the threaded cylinder 16 moves the collecting cylinder 7 to a position in contact with the ground, the four racks 20 are precisely in position to mesh with the four gears 13. As the threaded cylinder 16 continues to move the collecting cylinder 7 downward, the four racks 20 will drive the four gears 13 to rotate, thereby driving the rotating plate 10 to rotate and push the fertilizer in the conveying pipe 5 towards the ground. The fertilizer is transported inside the fertilizer cylinder 3. At this time, since the collection cylinder 7 is in contact with the fertilizer cylinder 3 and the limiting cylinder 6 at the same time, the fertilizer inside the fertilizer cylinder 3 will gather at the bottom of the fertilizer cylinder 3 and be distributed around the collection cylinder 7. When the collection cylinder 7 digs out the soil and moves the soil into the limiting cylinder 6, the fertilizer inside the fertilizer cylinder 3 will fall directly into the pit dug by the collection cylinder 7 through the collection port 8. When the collection cylinder 7 moves to the top position, the soil inside the collection cylinder 7 will be pushed out of the collection cylinder 7 by the push plate 9, and will fall into the pit to fill the pit.

[0041] When the threaded cylinder 16 moves the collecting cylinder 7 to the bottom position, the four racks 20 also move to the bottom position. When the racks 20 are about to reach the bottom position, the two pressing blocks 22 on the racks 20 begin to engage with the first pressing rod 23. As the racks 20 continue to move downward, under the pressure of the first pressing rod 23, the pressing blocks 22 will drive the sliders 19 to move closer to the other end of the slide rail 18. The sliders 19 on the front and rear sides of the slide rail 18 slide closer to each other, and the sliders 19 will drive the racks 20 connected to them to move. When the racks 20 reach the bottom position, the sliders 19 on the front and rear sides of the slide rail 18 are closest to each other, and the racks 20 no longer mesh with the gears 13.

[0042] like Figure 7-9As shown, as a further embodiment of the present invention, the fixing mechanism includes a slot 24, which is formed on the slider 19; a block 25 is symmetrically slidably connected to the slide rail 18 on the left and right sides of the slider 19, a second spring 26 is fixedly connected to the block 25, and the other end of the second spring 26 is fixedly connected to the slide rail 18; a second pressing rod 27 is provided above the block 25, and the second pressing rod 27 is fixedly connected to the fertilizer cylinder 3;

[0043] Four grooves 28 are provided on the side wall of the fertilizer cylinder 3, and the first extrusion rods 23 at the bottom of the four racks 20 are slidably connected to the four grooves 28 respectively; a connecting ring 29 is sleeved on the outside of the fertilizer cylinder 3, and the connecting ring 29 is fixedly connected to the four first extrusion rods 23 and the connecting ring 29 is in clearance fit with the fertilizer cylinder 3; an adjustment mechanism is provided on the connecting ring 29, and the adjustment mechanism is the same as the adjustment mechanism for the height of the four first extrusion rods 23;

[0044] During operation, when the sliders 19 on the front and rear sides of the slide rail 18 slide to their closest positions, the slots 24 on the sliders 19 move to the positions corresponding to the locking blocks 25. The locking blocks 25, under the action of the second spring 26, directly engage with the slots 24, thus fixing the sliders 19 to the slide rail 18. When the threaded cylinder 16 moves upward, the rack 20 moves upward while remaining disengaged from the gear 13. When the connecting frame 17 drives the slide rail 18 to its uppermost position, the locking blocks 25 engage with the second spring 26. When the lever 27 is engaged and the slide rail 18 drives the locking block 25 to continue moving upward, the locking block 25 moves to the outer position under the pressure of the second pressing lever 27. When the slide rail 18 moves to the uppermost position, the locking block 25 is pressed by the second pressing lever 27 to the position where it is disengaged from the locking slot 24. After the locking block 25 is disengaged from the locking slot 24, under the action of the first spring 21, the sliders 19 on the front and rear sides will slide to the frontmost and rearmost positions inside the slide rail 18, respectively. At this time, the racks 20 on the front and rear sides will return to the position where they mesh with the gear 13.

[0045] like Figure 6 As shown, as a further embodiment of the present invention, the adjusting mechanism includes a rotating frame 30, which is rotatably connected to the connecting ring 29; the outer surface of the fertilizer cylinder 3 is provided with an external thread 31, and the rotating frame 30 is threadedly engaged with the external thread 31; the external thread 31 has self-locking properties.

[0046] During operation, the vertical position of the rotating frame 30 can be adjusted by rotating the rotating frame 30 under the action of the external thread 31. When the rotating frame 30 moves upward, it will drive the four first pressing rods 23 to move upward through the connecting ring 29. When the four first pressing rods 23 move upward, they will engage with the pressing block 22 on the rack 20 in advance when the rack 20 moves downward, so that the rack 20 disengages from the gear 13 in advance, thereby ensuring that the number of rotations of the gear 13 is reduced, and the number of rotations of the rotating plate 10 is also reduced, thus reducing the amount of fertilizer transported into the fertilizer cylinder 3. Rotating the rotating frame 30 can adjust the amount of fertilizer applied.

Claims

1. A fertilization device for slow-release fertilizer for planting, comprising an operating lever (1), characterized in that: The bottom end of the operating rod (1) is fixedly connected to a connecting cylinder (2), and the bottom end of the connecting cylinder (2) is fixedly connected to a fertilizer cylinder (3); fertilizer cylinders (4) are symmetrically arranged on the left and right sides of the connecting cylinder (2), and conveying pipes (5) are symmetrically fixedly connected to the left and right ends of the fertilizer cylinder (3), and the conveying pipes (5) on the left and right sides are respectively fixedly connected to the fertilizer cylinders (4) on the left and right sides; a pit-digging mechanism is provided inside the fertilizer cylinder (3), which is used to dig a fertilizer pit in the ground; a transport mechanism is provided inside the conveying pipe (5), which is used to transport the fertilizer in the fertilizer cylinder (4) to the fertilizer cylinder (3); a first driving mechanism is provided inside the connecting cylinder (2), which is used to drive the pit-digging mechanism to run and drive the transport mechanism to run while the pit-digging mechanism is digging a pit; The digging mechanism includes a limiting cylinder (6), which is located inside the fertilizer cylinder (3) and fixedly connected to it; a collection cylinder (7) is slidably connected inside the limiting cylinder (6); a collection port (8) is provided at the bottom of the fertilizer cylinder (3), and the inner diameter of the collection port (8) is equal to the inner diameter of the limiting cylinder (6); a bulldozing mechanism is provided inside the limiting cylinder (6), which is used to push the soil out of the collection cylinder (7) after the soil is collected from the ground by the collection cylinder (7); the digging mechanism includes a limiting cylinder (6) and a shoveling mechanism. The conveying mechanism includes a rotating plate (10), which is located inside the conveying pipe (5) and is rotatably connected to the conveying pipe (5). The rotating plate (10) is in contact with the inner wall of the conveying pipe (5). A first bevel gear (11) is symmetrically and coaxially fixedly connected to the front and rear ends of the rotating plate (10). A second bevel gear (12) meshes with the first bevel gear (11). The second bevel gear (12) is rotatably connected to the conveying pipe (5), and a gear (13) is coaxially fixedly connected to the second bevel gear (12). The first driving mechanism includes a motor (14), which is located inside the connecting cylinder (2) and is fixedly connected to the connecting cylinder (2). A threaded rod (15) is fixedly connected to the bottom end of the output shaft of the motor (14). A threaded cylinder (16) is sleeved on the surface of the threaded rod (15). The threaded rod (15) and the threaded cylinder (16) are threaded together and the threaded rod (15) has self-locking properties. The threaded cylinder (16) is slidably connected to the fertilizer cylinder (3) and the bottom end of the threaded cylinder (16) is fixedly connected to the collection cylinder (7). A second driving mechanism is provided on the threaded cylinder (16). The second driving mechanism is used to drive the rotating plates (10) on the left and right sides to rotate when the threaded cylinder (16) moves downward. The second driving mechanism includes a connecting frame (17), on which slide rails (18) are symmetrically fixedly connected on the left and right sides. Slider blocks (19) are symmetrically slidably connected on the front and rear sides of the slide rails (18). A rack (20) is fixedly connected on the slider (19). A first spring (21) is provided between the racks (20) on the front and rear sides. The front and rear ends of the first spring (21) are fixedly connected to the racks (20) on the front and rear sides respectively. The racks (20) on the front and rear sides respectively mesh with the gears (13) on the front and rear sides. A disengagement mechanism is provided on the slide rails (18). The disengagement mechanism is used to disengage the racks (20) from the gears (13) when the racks (20) move the driving gears (13) and reset, so as to ensure that the gears (13) rotate in one direction. The release mechanism includes two pressing blocks (22), which are symmetrically distributed on the left and right sides above the rack (20) and are fixedly connected to the rack (20). A first pressing rod (23) is provided at the bottom of the rack (20), which is located directly below the two pressing blocks (22) on the rack (20). A fixing mechanism is provided on the slider (19), which is used to lock the slider (19) after the rack (20) moves to the bottom position and is pressed by the first pressing rod (23) through the pressing blocks (22) to slide. The slider (19) is unlocked after the rack (20) is reset.

2. The fertilization device for slow-release fertilizer for planting according to claim 1, characterized in that: The bulldozing mechanism includes four push plates (9), which are arranged in a circular array inside the limiting cylinder (6) and are fixedly connected to the limiting cylinder (6); the four push plates (9) are fitted with the collection cylinder (7) with a clearance.

3. The fertilization device for slow-release fertilizer for planting according to claim 1, characterized in that: The fixing mechanism includes a slot (24) which is opened on the slider (19); a block (25) is symmetrically slidably connected on the slide rail (18) on the left and right sides of the slider (19); a second spring (26) is fixedly connected on the block (25); the other end of the second spring (26) is fixedly connected to the slide rail (18); a second extrusion rod (27) is provided above the block (25); the second extrusion rod (27) is fixedly connected to the fertilizer cylinder (3).

4. The fertilization device for slow-release fertilizer for planting according to claim 1, characterized in that: The fertilizer cylinder (3) has four sliding grooves (28) on its side wall. The first extrusion rods (23) at the bottom of the four racks (20) are slidably connected to the four sliding grooves (28). A connecting ring (29) is sleeved on the outside of the fertilizer cylinder (3). The connecting ring (29) is fixedly connected to the four first extrusion rods (23) and the connecting ring (29) is in clearance fit with the fertilizer cylinder (3). An adjustment mechanism is provided on the connecting ring (29). The adjustment mechanism is used to adjust the height of the four first extrusion rods (23).

5. The fertilization device for slow-release fertilizer for planting according to claim 4, characterized in that: The adjustment mechanism includes a rotating frame (30), which is rotatably connected to a connecting ring (29); the outer surface of the fertilizer cylinder (3) is provided with an external thread (31), and the rotating frame (30) is threadedly engaged with the external thread (31); the external thread (31) has self-locking properties.

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