A fertilizer device for rice planting

Abstract

The utility model relates to agricultural machinery technical field especially relates to a kind of fertilizer injection unit for rice planting, including lower base, the outer side four quarters of lower base are all provided with wheel, the upper end four corners of lower base are all fixedly connected with support column, the upper end middle part of upper base is fixedly connected with anti-caking mechanism with insertion, the bottom of anti-caking mechanism is fixedly connected with eight discharge bellows, the upper end middle part of lower base is recessed, the recess is fixedly connected with ration mechanism, the right end middle part of upper base and lower base is fixedly connected with side plate in common, the right end lower part of side plate is fixedly connected with power box.The utility model discloses a kind of fertilizer injection unit for rice planting, prevent fertilizer caking efficiently by anti-caking mechanism to guarantee that unloading is smooth, by ration mechanism accurate control fertilization amount to ensure that fertilization is uniform, effectively solve the prior art problem.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a fertilization device for rice cultivation. Background Technology

[0002] Although the fertilizer application devices on the market have certain deep application capabilities, there are still technical bottlenecks. Firstly, fertilizers are prone to clumping during storage and transportation, which leads to poor material feeding and affects the continuity of fertilization operations.

[0003] For example, CN218920974U discloses an automated rice fertilization device, which relates to the field of agricultural machinery. The device includes a mounting frame connected to a hopper, a mixer installed inside the hopper, a sieve plate below the hopper, a storage box at the lower end of the sieve plate, and a spreading component connected to the lower end of the storage box. The spreading component includes an outer cylinder connected to the lower opening of the storage box, and a dispersing element rotatably installed inside the outer cylinder.

[0004] This automated rice fertilization device does not mention effective solutions to the fertilizer caking problem. In actual use, fertilizer caking may hinder the fertilization process. Secondly, the precision of fertilizer dosage control is insufficient, making it difficult to meet the needs of precise fertilization for rice. The fertilization control method of existing fertilization devices is crude, relying mostly on manual experience or simple timer control. It cannot achieve precise control based on soil nutrient dynamics, crop nutrient requirements, and environmental changes, leading to over-fertilization and a series of environmental problems such as eutrophication of water bodies. Therefore, it is necessary to design a fertilization device for rice cultivation to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a fertilization device for rice cultivation, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A fertilization device for rice cultivation includes a lower base with wheels on all four sides of its outer perimeter. Support columns are fixedly connected to the four upper corners of the lower base, and an upper base is fixedly connected to the upper ends of the four support columns. Two push handles are fixedly connected to the center of the front end of the upper base. An anti-caking mechanism is inserted and fixedly connected to the center of the upper base, and eight feeding corrugated pipes are fixedly connected to the bottom of the anti-caking mechanism. A groove is formed in the center of the upper end of the lower base, and a metering mechanism is fixedly connected within the groove. A side plate is fixedly connected to the center of the right end of both the upper and lower bases, and a power supply box is fixedly connected to the lower right end of the side plate.

[0008] Preferably, the anti-caking mechanism includes a circular box, an upper mounting shell, and a first drive motor. A feed pipe is inserted into the upper part of the outer surface of the circular box. The output end of the first drive motor passes through the upper mounting shell and is fixedly connected to a main rotating gear. Engaging components are meshed around the outer surface of the main rotating gear. A main rod is fixedly connected to the lower center of the main rotating gear. Multiple first cutting blocks are fixedly connected to the outer surface of the main rod. Eight connecting slots are opened at the bottom of the circular box. The circular box is inserted into and fixedly connected to the upper center of the upper base. The first drive motor is fixedly connected to the upper center of the upper mounting shell. The upper mounting shell is fixedly connected to the upper end of the circular box.

[0009] Preferably, the meshing assembly includes a secondary gear disk, a connecting shaft is fixedly connected to the upper middle part of the secondary gear disk, a secondary rod is fixedly connected to the lower middle part of the secondary gear disk, a plurality of hollow frames are fixedly connected to the outer surface of the secondary rod, a second cutting block is fixedly connected to the lower part of the outer surface of the secondary rod, and the secondary gear disk is meshed with one side of the outer surface of the main rotating gear disk.

[0010] Preferably, the metering mechanism includes a housing and a second drive motor. The upper and lower outer surfaces of the housing are each provided with eight feeding slots. The output end of the second drive motor passes through a side plate and is fixedly connected to a first gear. The lower outer surface of the first gear is meshed with a second gear. A connecting rod is inserted and fixedly connected to the middle left end of the second gear. A rotating cylinder is fixedly connected to the left end of the connecting rod. A side shaft is fixedly connected to the middle left end of the rotating cylinder. The outer surface of the rotating cylinder is provided with multiple metering slots. The second drive motor is fixedly connected to the middle right end of the side plate. The housing is fixedly connected within the groove.

[0011] Preferably, the feed pipe is inclined, and the connection position between the feed pipe and the circular box is located on the upper part of the outer surface of the circular box near the edge. The main rotating gear is located inside the upper mounting shell. Four meshing components are arranged in a ring array around the outer periphery of the main rotating gear. The upper end of the connecting shaft in each meshing component is movably connected to the inner top wall of the upper mounting shell. The main rod and multiple secondary rods are located inside the circular box. Multiple first blade pieces are arranged at equal intervals along the length of the main rod.

[0012] Preferably, the plurality of hollow frames are distributed in a ring at equal intervals around the secondary rod, and the plurality of second blade blocks are distributed in a ring at equal intervals around the secondary rod, with the plurality of second blade blocks located directly below the hollow frames. Neither the hollow frames nor the second blade blocks are in contact with the first blade blocks.

[0013] Preferably, the eight feeding grooves on the upper side are connected one-to-one with the lower ends of the eight feeding corrugated pipes, and the positions of the feeding grooves on the upper side correspond to the positions of the connecting grooves in the vertical direction. The rotating cylinder is cylindrical, and the outer diameter of the rotating cylinder is adapted to the inner diameter of the outer shell. The rotating cylinder is located inside the outer shell, and the outer surface of the rotating cylinder is in close contact with the inner surface of the outer shell.

[0014] Preferably, the left end of the side shaft rod passes through the outer casing and is movably connected to the middle of the left groove wall of the groove via a bearing, and the right end of the connecting rod is movably connected to the side plate via a bearing.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, the main rotating gear disk is driven to rotate by the first drive motor, which in turn drives the four meshing components around it to operate synchronously. This allows multiple first blade pieces on the main rod and multiple hollow frames and second blade pieces on the secondary rod to work together to fully stir and break up the fertilizer in the cylindrical box. The rotation directions of the main rod and the secondary rod are coordinated, and the distribution positions of the first blade pieces, hollow frames and second blade pieces do not interfere with each other. This can efficiently break up clumps of fertilizer. The processed fertilizer can smoothly enter the feeding corrugated pipe through the connecting groove at the bottom of the cylindrical box, effectively avoiding feeding blockage caused by clumping and ensuring the continuity of fertilization operations.

[0017] 2. In this utility model, the metering mechanism drives the first gear and the second gear to mesh and transmit power through the second drive motor, causing the rotating cylinder to rotate stably inside the outer shell. The metering groove on the outer surface of the rotating cylinder corresponds precisely to the feeding groove at the top and bottom of the outer shell. When the metering groove rotates to the position of the upper feeding groove, it receives fertilizer; when it rotates to the position of the lower feeding groove, it discharges fertilizer. The rotating cylinder and the outer shell are tightly fitted to prevent fertilizer leakage. By controlling the rotation speed of the rotating cylinder, the amount of fertilizer applied per unit time can be stably regulated, achieving precise control of the amount of fertilizer applied. This meets the requirements for uniform fertilization during rice cultivation and avoids resource waste and environmental problems caused by uneven or excessive fertilization. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a fertilization device for rice cultivation according to the present invention.

[0019] Figure 2 This is a schematic diagram of the left side of a fertilization device for rice cultivation according to the present invention.

[0020] Figure 3 This is a cross-sectional and partially enlarged schematic diagram of the quantitative mechanism combined with the connection structure of a fertilization device for rice cultivation according to this utility model.

[0021] Figure 4This is a schematic diagram of the meshing component structure of a fertilization device for rice cultivation according to the present invention.

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of the quantitative mechanism of a fertilization device for rice cultivation according to the present invention.

[0023] In the diagram: 1. Wheel; 2. Lower base; 3. Support column; 4. Upper base; 5. Push handle; 6. Anti-caking mechanism; 7. Metering mechanism; 8. Side plate; 9. Power supply box; 10. Groove; 11. Feeding corrugated pipe; 61. First drive motor; 62. Feed pipe; 63. Main rotating gear; 64. Meshing assembly; 65. Connecting groove; 66. Main rod; 67. First cutter block; 68. Upper mounting shell; 69. Circular box; 641. Connecting shaft; 642. Secondary gear disk; 643. Secondary rod; 644. Hollow frame; 645. Secondary cutter block; 71. Secondary drive motor; 72. First gear; 73. Outer shell; 74. Feeding groove; 75. Rotating cylinder; 76. Connecting rod; 77. Secondary gear; 78. Metering groove; 79. Side shaft. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-5 This utility model provides a technical solution:

[0028] A fertilization device for rice cultivation includes a lower base 2, with wheels 1 arranged around the outer perimeter of the lower base 2. Support columns 3 are fixedly connected to the four corners of the upper end of the lower base 2. The upper ends of the four support columns 3 are fixedly connected to an upper base 4. Two push handles 5 are fixedly connected to the middle of the front end of the upper base 4. An anti-caking mechanism 6 is inserted and fixedly connected to the middle of the upper end of the upper base 4. Eight feeding corrugated pipes 11 are fixedly connected to the bottom of the anti-caking mechanism 6. A groove 10 is opened in the middle of the upper end of the lower base 2. A metering mechanism 7 is fixedly connected in the groove 10. A side plate 8 is fixedly connected to the middle of the right end of the upper base 4 and the lower base 2. A power supply box 9 is fixedly connected to the lower right end of the side plate 8.

[0029] In this embodiment, the anti-caking mechanism 6 includes a circular box 69, an upper mounting shell 68, and a first drive motor 61. A feed pipe 62 is inserted into the upper part of the outer surface of the circular box 69. The output end of the first drive motor 61 passes through the upper mounting shell 68 and is fixedly connected to a main rotating gear 63. Engaging components 64 are meshed around the outer surface of the main rotating gear 63. A main rod 66 is fixedly connected to the lower center of the main rotating gear 63. Multiple first blade pieces 67 are fixedly connected to the outer surface of the main rod 66. The bottom has eight connecting slots 65. The circular box 69 is inserted and fixedly connected to the upper middle part of the upper base 4. The first drive motor 61 is fixedly connected to the upper middle part of the upper mounting shell 68. The upper mounting shell 68 is fixedly connected to the upper end of the circular box 69. The meshing assembly 64 includes a secondary gear disk 642. A connecting shaft 641 is fixedly connected to the upper middle part of the secondary gear disk 642. A secondary rod 643 is fixedly connected to the lower middle part of the secondary gear disk 642. Multiple hollow frames 644 are fixedly connected to the outer surface of the secondary rod 643. A second cutter block 645 is fixedly connected to the lower part of the outer surface of the secondary rod 643. The secondary gear disk 642 is meshed with one side of the outer surface of the main rotating gear disk 63. The feed pipe 62 is inclined, and the connection position between the feed pipe 62 and the circular box 69 is located at the upper part of the outer surface of the circular box 69 near the edge. The main rotating gear disk 63 is located inside the upper mounting shell 68. Four meshing components 64 are arranged in a ring array around the outer periphery of the main rotating gear disk 63, and the upper end of the connecting shaft 641 in each meshing component 64 is connected to... The inner top wall of the upper mounting shell 68 is movably connected. The main rod 66 and multiple secondary rods 643 are all located inside the circular box 69. Multiple first blade blocks 67 are arranged equidistantly along the length of the main rod 66. Multiple hollow frames 644 are distributed in a ring equidistantly with the secondary rods 643 as the center. Multiple second blade blocks 645 are distributed in a ring equidistantly with the secondary rods 643 as the center. The multiple second blade blocks 645 are all located directly below the hollow frames 644. Neither the hollow frames 644 nor the second blade blocks 645 are in contact with the first blade blocks 67.

[0030] Through the above scheme: When the anti-caking mechanism 6 is working, fertilizer enters the cylindrical box 69 through the inclined feed pipe 62 connected to the upper part of the outer surface of the cylindrical box 69 near the edge. After the first drive motor 61 starts, its output end passes through the upper mounting shell 68 and drives the main rotating gear disk 63 located inside the upper mounting shell 68 to rotate. The main rotating gear disk 63 then drives the secondary gear disk 642 of the four meshing components 64 that are arranged in a ring array on the outer side and are movably connected to the inner top wall of the upper mounting shell 68 through the connecting shaft 641 to rotate. This causes the main rod 66 at the lower end of the main rotating gear disk 63 and the secondary rod 643 at the lower end of the secondary gear disk 642 to rotate synchronously in the cylindrical box 69. The multiple first blade pieces 67 arranged at equal intervals along the length of the main rod 66 and the secondary blade pieces 642 rotate synchronously. Multiple hollow frames 644, arranged in a ring at equal intervals around the rod 643, and multiple second blade blocks 645 located directly below the hollow frames 644 work together to stir and crush the fertilizer. The hollow frames 644 and the second blade blocks 645 do not contact the first blade block 67 to avoid mutual interference. The processed fertilizer is discharged through eight connecting slots 65 at the bottom of the circular box 69. This anti-caking mechanism 6, through the synergistic action of the main rod 66, the first blade block 67 and the second blade block 645 on the secondary rod 643, and the hollow frames 644, can efficiently stir and crush the fertilizer, effectively prevent fertilizer from clumping, ensure smooth fertilizer falling, and has a reasonable structural design. The stable operation of each component improves the reliability and working efficiency of the fertilization device.

[0031] In this embodiment, the metering mechanism 7 includes a housing 73 and a second drive motor 71. Eight feeding slots 74 are formed on both the upper and lower parts of the outer surface of the housing 73. The output end of the second drive motor 71 passes through the side plate 8 and is fixedly connected to a first gear 72. A second gear 77 is meshed with the lower part of the outer surface of the first gear 72. A connecting rod 76 is inserted and fixedly connected to the middle of the left end of the second gear 77. A rotating cylinder 75 is fixedly connected to the left end of the connecting rod 76. A side shaft 79 is fixedly connected to the middle of the left end of the rotating cylinder 75. Multiple metering slots 78 are formed on the outer surface of the rotating cylinder 75. The second drive motor 71 is fixedly connected to the side plate 8. At the right end of the middle, the outer shell 73 is fixedly connected in the groove 10. The eight feeding grooves 74 on the upper side are connected to the lower ends of the eight feeding corrugated pipes 11 one by one. The position of the feeding grooves 74 on the upper side corresponds to the position of the connecting groove 65 in the vertical direction. The rotating cylinder 75 is cylindrical, and the outer diameter of the rotating cylinder 75 is adapted to the inner diameter of the outer shell 73. The rotating cylinder 75 is located inside the outer shell 73, and the outer surface of the rotating cylinder 75 is tightly fitted to the inner surface of the outer shell 73. The left end of the side shaft rod 79 passes through the outer shell 73 and is movably connected to the middle of the left groove wall of the groove 10 through a bearing. The right end of the connecting rod 76 is movably connected to the side plate 8 through a bearing.

[0032] Through the above scheme: When the quantitative mechanism 7 is working, the fertilizer, after being processed by the anti-caking mechanism, is conveyed through the feeding corrugated pipe 11 to the eight feeding slots 74 on the upper part of the outer shell 73. Since the upper feeding slots 74 and the connecting slots 65 are vertically aligned, the fertilizer can smoothly enter the interior of the outer shell 73. At the same time, the second drive motor 71 starts, and its output end passes through the side plate 8 to drive the first gear 72 to rotate. The first gear 72 meshes with the second gear 77, causing the second gear 77 to drive the rotating cylinder 75 to rotate through the connecting rod 76 at the left end. The side shaft rod 79 at the left end of the rotating cylinder 75 is movably connected to the middle of the left groove wall of the groove 10 through a bearing. The right end of the connecting rod 76 is movably connected to the side plate 8 through a bearing, ensuring that the rotating cylinder 75 rotates stably inside the outer shell 73. The outer diameter of the rotating cylinder 75 is adapted to and tightly fitted with the inner diameter of the outer shell 73. When the metering groove 78 on the outer surface of the rotating cylinder 75 rotates to the position corresponding to the upper feeding groove 74, fertilizer enters the metering groove 78. As the rotating cylinder 75 continues to rotate, the metering groove 78 moves to the position corresponding to the lower feeding groove 74 of the outer shell 73, and fertilizer is discharged from the metering groove 78, thus realizing quantitative fertilization. This metering mechanism 7 drives the rotating cylinder 75 to rotate through the transmission of the first gear 72 and the second gear 77, and realizes the quantitative delivery of fertilizer by using the metering groove 78. The structure is stable and the metering is accurate. Moreover, the tight fit between the rotating cylinder 75 and the outer shell 73 avoids fertilizer leakage, improves the accuracy of fertilizer application and the reliability of the device, ensures uniform fertilization during rice planting, and is beneficial to rice growth.

[0033] It should be noted that this utility model is a fertilization device for rice cultivation. When the fertilization device is working, fertilizer is first added into the cylindrical box 69 of the anti-caking mechanism 6 through the feed pipe 62. The power supply box 9 provides power, and the first drive motor 61 starts. Its output end drives the main rotating gear 63 to rotate. The main rotating gear 63 drives the secondary gear 642 of the four meshing components 64 around it to rotate, so that the main rod 66 and the secondary rod 643 rotate synchronously. The multiple first blade pieces 67 on the main rod 66 and the multiple hollow frames 644 and second blade pieces 645 on the secondary rod 643 stir and cut the fertilizer in the cylindrical box 69. Cutting prevents fertilizer from clumping. The treated fertilizer enters the feeding corrugated pipe 11 through the eight connecting slots 65 at the bottom of the cylindrical box 69, and then enters the feeding slot 78 of the rotating cylinder 75 through the feeding slot 74 on the upper part of the housing 73 of the metering mechanism 7. At the same time, the second drive motor 71 starts, and its output end drives the first gear 72 to rotate. The first gear 72 drives the meshing second gear 77 to rotate. The second gear 77 drives the rotating cylinder 75 to rotate through the connecting rod 76. When the feeding slot 78 rotates to the position of the feeding slot 74 at the lower part of the housing 73, the fertilizer falls to complete the fertilization. The entire process can be moved by the push handle 5 and the wheels 1.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fertilizer application device for rice cultivation comprising a lower base (2), characterized in that: The lower base (2) is provided with wheels (1) on all four sides of its outer side. The upper corners of the lower base (2) are fixedly connected with support columns (3). The upper ends of the four support columns (3) are fixedly connected with the upper base (4). The front middle of the upper base (4) is fixedly connected with two push handles (5). The upper middle of the upper base (4) is fixedly connected with an anti-caking mechanism (6). The bottom of the anti-caking mechanism (6) is fixedly connected with eight feeding corrugated pipes (11). The upper middle of the lower base (2) has a groove (10). The groove (10) is fixedly connected with a metering mechanism (7). The upper base (4) and the lower base (2) are fixedly connected with a side plate (8) at the middle of their right ends. The lower right end of the side plate (8) is fixedly connected with a power supply box (9).

2. The fertilizer application apparatus for rice cultivation according to claim 1, characterized by: The anti-caking mechanism (6) includes a circular box (69), an upper mounting shell (68), and a first drive motor (61). A feed pipe (62) is inserted into the upper part of the outer surface of the circular box (69). The output end of the first drive motor (61) passes through the upper mounting shell (68) and is fixedly connected to a main rotating gear (63). The outer surface of the main rotating gear (63) is meshed with meshing components (64) around its perimeter. A main rod (66) is fixedly connected to the lower middle part of the main rotating gear (63). Multiple first cutting blocks (67) are fixedly connected to the outer surface of the main rod (66). Eight connecting slots (65) are opened at the bottom of the circular box (69). The circular box (69) is inserted and fixedly connected to the upper middle part of the upper base (4). The first drive motor (61) is fixedly connected to the upper middle part of the upper mounting shell (68). The upper mounting shell (68) is fixedly connected to the upper end of the circular box (69).

3. The fertilizer application apparatus for rice cultivation according to claim 2, characterized by: The meshing assembly (64) includes a secondary gear disk (642), a connecting shaft (641) is fixedly connected to the middle of the upper end of the secondary gear disk (642), a secondary rod (643) is fixedly connected to the middle of the lower end of the secondary gear disk (642), a plurality of hollow frames (644) are fixedly connected to the outer surface of the secondary rod (643), a second cutting block (645) is fixedly connected to the lower part of the outer surface of the secondary rod (643), and the secondary gear disk (642) is meshed with one side of the outer surface of the main rotating gear disk (63).

4. The fertilizer application apparatus for rice cultivation according to claim 1, characterized by: The metering mechanism (7) includes a housing (73) and a second drive motor (71). The upper and lower outer surfaces of the housing (73) are provided with eight feeding slots (74). The output end of the second drive motor (71) passes through the side plate (8) and is fixedly connected to a first gear (72). The lower outer surface of the first gear (72) is meshed with a second gear (77). A connecting rod (76) is inserted and fixedly connected to the middle left end of the second gear (77). A rotating cylinder (75) is fixedly connected to the left end of the connecting rod (76). A side shaft rod (79) is fixedly connected to the middle left end of the rotating cylinder (75). The outer surface of the rotating cylinder (75) is provided with multiple metering slots (78). The second drive motor (71) is fixedly connected to the middle right end of the side plate (8). The housing (73) is fixedly connected in the groove (10).

5. A fertilization device for rice cultivation according to claim 2, characterized in that: The feed pipe (62) is inclined, and the connection position between the feed pipe (62) and the circular box (69) is located on the upper part of the outer surface of the circular box (69) near the edge. The main rotating gear (63) is located inside the upper mounting shell (68). Four meshing components (64) are arranged in a ring array around the outer side of the main rotating gear (63). The upper end of the connecting shaft (641) in each meshing component (64) is movably connected to the inner top wall of the upper mounting shell (68). The main rod (66) and multiple secondary rods (643) are located inside the circular box (69). Multiple first blade pieces (67) are arranged at equal intervals along the length of the main rod (66).

6. The fertilizer application apparatus for rice cultivation according to claim 3, characterized by: Multiple hollow frames (644) are distributed in a ring at equal intervals around the secondary rod (643), and multiple second blade blocks (645) are distributed in a ring at equal intervals around the secondary rod (643). All of the multiple second blade blocks (645) are located directly below the hollow frames (644), and neither the hollow frames (644) nor the second blade blocks (645) are in contact with the first blade block (67).

7. The fertilizer application apparatus for rice cultivation according to claim 4, characterized by: The eight feeding grooves (74) on the upper side are connected to the lower ends of the eight feeding corrugated pipes (11) one by one, and the position of the feeding grooves (74) on the upper side corresponds to the position of the connecting grooves (65) in the vertical direction. The rotating cylinder (75) is cylindrical, and the outer diameter of the rotating cylinder (75) is adapted to the inner diameter of the outer shell (73). The rotating cylinder (75) is located inside the outer shell (73), and the outer surface of the rotating cylinder (75) is in close contact with the inner surface of the outer shell (73). 8.The fertilizer applying device for rice planting according to claim 4, characterized in that: The left end of the side shaft rod (79) passes through the outer shell (73) and is movably connected to the middle of the left groove wall of the groove (10) through a bearing. The right end of the connecting rod (76) is movably connected to the side plate (8) through a bearing.

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