Rice planting and fertilizing device with range adjusting function

Abstract

The present application relates to the field of agricultural planting technology, specifically to a rice planting and fertilizing device with range adjusting function, comprising a storage box, a walking mechanism, a stirring mechanism, a fertilizing structure and a linkage structure; a storage bin is arranged in the storage box; the walking mechanism can change the height of the storage box; the stirring mechanism comprises a main shaft, stirring blades and a driving structure, the driving structure is used to drive the main shaft to rotate; the fertilizing structure has two, the two fertilizing structures are symmetrically arranged on the middle surface of the storage box, the fertilizing structure comprises an adjustable support, a booster pipe and a conveying pipe, the state of the adjustable support can be rotated from vertical downward to inclined upward, the booster pipe is used to increase the pressure when the fertilizer is discharged, and the conveying pipe is installed on the adjustable support; the linkage structure drives the two adjustable supports to move synchronously and reversely; the adjustable support and the linkage structure are arranged, so that the fertilizing of the rice under the fertilizing device is realized at the same time in the process of fertilizing the rice around the fertilizing device.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, specifically to a rice planting fertilization device with range adjustment function. Background Technology

[0002] With the development of the times, rice cultivation has become increasingly large-scale. In order to increase rice yield, foliar fertilization is also required during the rice growth period, which involves spraying micronutrient fertilizers and plant growth regulators onto the rice leaves to promote rice growth and improve its resistance to adverse conditions. However, with the large-scale cultivation of rice, manual fertilization would increase labor intensity and costs, thus necessitating the use of rice fertilization equipment.

[0003] Chinese Patent CN219305424U discloses a high-efficiency fertilization device for rice cultivation. Its working principle is as follows: First, the prepared water and fertilizer nutrient solution are poured into a water tank through the inlet. A rotating motor causes the transmission rod to rotate synchronously, driving the stirring blades to rotate and agitate the fertilizer nutrient solution inside the water tank. Then, rotating the adjusting handwheel causes the first bidirectional screw to rotate, adjusting the moving block. Starting the drive motor causes the second bidirectional screw to rotate, moving the threaded shaft block. The threaded shaft block cooperates with the double-ended shaft block, gradually raising the adjusting rod and thus raising the entire equipment storage box. Raise and adjust the height, start the suction pump, which pumps the fertilizer solution from the water tank into the spray head through the delivery pipe. Simultaneously, start the adjusting motor, which drives the rotating rod to adjust the spray angle and distance. During spraying, start the diffuser fan to widen the spray range. Through the combined effect of these two mechanisms, the spray coverage area is increased, the spray distance is extended, and the overall coverage area is further expanded, significantly improving fertilization efficiency.

[0004] In the above scheme, the fertilizer sprayed from the two spray heads is directed towards both sides of the water tank by the fan. However, the water tank has a certain width, and the rice plants located on the water tank's path cannot be sprayed with fertilizer during the water tank's movement. After the water tank changes its path, the fertilizer sprayed from the spray heads may not reach the path previously taken by the water tank, resulting in poor fertilizer application for the rice plants on the water tank's path and affecting the growth of some rice plants. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a rice planting fertilization device with range adjustment function. The invention is equipped with an adjustable support and a linkage structure, thereby enabling simultaneous fertilization of the rice below the fertilization device while fertilizing the rice around the fertilization device.

[0006] To address the problems of existing technologies, this invention provides a rice planting fertilization device with range adjustment function, including a storage box, a walking mechanism, a stirring mechanism, a fertilization structure, and a linkage structure. The storage box contains a storage hopper, and an inlet is located at the top of the storage box. The walking mechanism is located at the bottom of the storage box and can adjust the height of the storage box to accommodate rice plants of different heights. The stirring mechanism is used to stir the liquid and solid in the storage hopper to ensure uniform mixing. The stirring mechanism includes a main rotating shaft, stirring blades, and a drive structure. The main rotating shaft is located inside the storage hopper, with both ends extending out of the storage box. The stirring blades are mounted on the main rotating shaft, and the drive structure is located on the upper part of the storage box. The main shaft is driven by a drive structure. There are two fertilizer application structures, symmetrically positioned about the middle of the storage tank. Each fertilizer application structure includes an adjustable bracket, a pressure boosting pipe, and a conveying pipe. One side of the adjustable bracket is hinged to the storage tank, and its position can rotate from vertically downwards to tilted upwards. The pressure boosting pipe is connected to the lower end of the storage tank and increases the pressure during fertilizer discharge. One end of the conveying pipe is connected to the pressure boosting pipe, and the other end is connected to a nozzle. The conveying pipe is mounted on the adjustable bracket. A linkage structure transmits the power of the main shaft to the two adjustable brackets, driving them to move synchronously in opposite directions.

[0007] Preferably, the adjustable support includes a first U-shaped frame, a secondary rotating shaft, a crossbeam, and two elastic connecting structures; the open end of the first U-shaped frame faces away from the storage box, and slots are provided at both ends of the first U-shaped frame; the secondary rotating shaft is connected to the other end of the first U-shaped frame, and both ends of the secondary rotating shaft are axially connected to the storage box; the crossbeam is located at the open end of the first U-shaped frame; the two elastic connecting structures are respectively located at both ends of the crossbeam, and the two elastic connecting structures are respectively located in two slots, one end of the elastic connecting structure is connected to the crossbeam, and the other end of the elastic connecting structure is connected to the first U-shaped frame.

[0008] Preferably, the adjustable bracket further includes a range control structure, which is located in the middle of the first U-shaped frame. The range control structure includes a screw sleeve, a screw rod, and a first limiting ring. One end of the screw sleeve is connected to the first U-shaped frame, and the other end of the screw sleeve faces the crossbeam. One end of the screw rod is located inside the screw sleeve, and the other end of the screw rod passes through the crossbeam. The first limiting ring is connected to the other end of the screw rod.

[0009] Preferably, the range control structure further includes a second limiting ring, which is sleeved on the screw, and the second limiting ring and the first limiting ring are respectively disposed on both sides of the crossbeam.

[0010] Preferably, the fertilization structure further includes a nozzle extension structure, which includes a rectangular ring, an extension rod, and a locking structure; the rectangular ring is fixedly installed on the crossbeam; the extension rod is slidably disposed within the rectangular ring, and one end of the delivery pipe is disposed within the extension rod; the locking structure is used to fix the relative position of the extension rod and the rectangular ring.

[0011] Preferably, the extension rod has several notches and slots on its wall surface; the locking structure includes a U-shaped frame, a locking block, a push plate, and a second spring; the opening of the U-shaped frame faces the rectangular ring, and the U-shaped frame is connected to the rectangular ring; the locking block is set inside the U-shaped frame, and one end of the locking block passes through the rectangular ring and engages with the notch and slot; one end of the push plate is connected to the locking block, and the other end of the push plate extends out as a crossbeam; the second spring is set between the U-shaped frame and the push plate, and the second spring is used to apply a force toward the extension rod to the push plate.

[0012] Preferably, the fertilization structure also includes a buffer and anti-collision structure to prevent the adjustable support from colliding with the storage bin.

[0013] Preferably, the linkage structure includes two driven gears, a double-sided rack, a first connecting block, and a second connecting block; the two driven gears are respectively disposed on both sides of the double-sided rack, the double-sided rack moves up and down in the vertical direction, and the driven gears mesh with the double-sided rack for transmission; one end of the first connecting block is connected to the main rotating shaft; one end of the second connecting block is axially connected to one end of the double-sided rack, and the other end of the second connecting block is axially connected to the other end of the first connecting block.

[0014] Preferably, the linkage structure also includes a limiting structure, which is used to restrict the movement direction of the double-sided rack.

[0015] Preferably, the linkage structure also includes a support structure, which provides support force to the double-sided rack from both sides.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. The present invention is provided with an adjustable support and a linkage structure. The linkage structure transmits the power of the stirring mechanism to the adjustable support, causing the adjustable support to swing back and forth within the range of vertical downward to inclined upward, thereby enabling simultaneous fertilization of the rice below the fertilization device while fertilizing the rice around the fertilization device.

[0018] 2. This invention comprises a first U-shaped frame, a secondary rotating shaft, a crossbeam, and an elastic connecting structure. The secondary rotating shaft drives the first U-shaped frame to swing. The first U-shaped frame drives the crossbeam to swing through two elastic connecting structures. The crossbeam is far from the secondary rotating shaft, and the crossbeam experiences a large centrifugal force. This centrifugal force is applied to the first spring, which is compressed. The first guide post slides out of the slot, causing the crossbeam to move away from the first U-shaped frame. The crossbeam then drives the outlet of the conveying pipe away from the storage box, increasing the distance between the outlet of the conveying pipe and the storage box, thereby allowing for a larger spraying range of fertilizer within the conveying pipe.

[0019] 3. This invention features a range control structure. Based on the distance between one side of the storage bin and the furthest rice paddy, the operator rotates a rotating disk. The disk drives a screw to rotate, which moves along a threaded sleeve. The screw and sleeve are self-locking. When the operator stops rotating the disk, the total length of the screw and sleeve remains unchanged. The crossbeam, subjected to centrifugal force and the elastic connection structure, can move along the screw. When the crossbeam reaches contact with the first limiting ring, it stops moving. The maximum distance between the crossbeam and the first U-shaped frame is controlled between the first limiting ring and the first U-shaped frame. Therefore, the range of movement of the conveying pipe driven by the crossbeam is controlled, thereby controlling the fertilizer spraying range and preventing fertilizer from spraying outside the rice planting area. Attached Figure Description

[0020] Figure 1 This is a three-dimensional diagram of a rice planting and fertilization device with range adjustment function.

[0021] Figure 2 This is a front view of a rice planting and fertilization device with range adjustment function.

[0022] Figure 3 yes Figure 2 Sectional view at point AA.

[0023] Figure 4 This is a three-dimensional diagram of the storage bin and fertilization structure in a rice planting fertilization device with range adjustment function.

[0024] Figure 5 This is a three-dimensional diagram of an adjustable support frame in a rice planting and fertilization device with range adjustment function.

[0025] Figure 6 This is an exploded view of an adjustable support frame in a rice planting and fertilization device with range adjustment function.

[0026] Figure 7 This is a three-dimensional diagram of the nozzle extension structure in a rice planting fertilization device with range adjustment function.

[0027] Figure 8This is a cross-sectional view of the nozzle extension structure in a rice planting fertilization device with range adjustment function.

[0028] Figure 9 This is a three-dimensional diagram of a rice planting and fertilization device with range adjustment function, including a storage bin, a first U-shaped frame, and a buffer and anti-collision structure.

[0029] Figure 10 This is a three-dimensional diagram of a rice planting and fertilization device with range adjustment function, including a storage box, main shaft, auxiliary shaft, and linkage structure.

[0030] Figure 11 This is a three-dimensional diagram of a double-sided rack and limiting structure in a rice planting and fertilization device with range adjustment function.

[0031] Figure 12 This is a three-dimensional diagram of a double-sided rack and support structure in a rice planting and fertilization device with range adjustment function.

[0032] The diagram is labeled as follows: 1. Storage bin; 11. Storage silo; 12. Inlet; 2. Traveling mechanism; 3. Mixing mechanism; 31. Mixing blades; 32. Main shaft; 33. Drive structure; 4. Fertilizer application structure; 41. Adjustable bracket; 411. First U-shaped frame; 4111. Slot; 412. Secondary shaft; 413. Crossbeam; 414. Elastic connection structure; 4141. First guide post; 4142. First spring; 415. Range control structure; 4151. Screw sleeve; 4152. Screw; 4153. First limiting ring; 4154. Rotating disk; 4155. Second limiting ring; 42. Pressure boosting pipe; 43. Conveying pipe; 44. Nozzle extension structure; 441. Rectangular ring sleeve; 442. Extension 4421. Long rod; 443. Notch; 443. Locking structure; 4431. U-shaped frame; 4432. Locking block; 4433. Push plate; 4434. Second spring; 45. Buffer and anti-collision structure; 451. Mounting base; 452. Elastic shaft; 453. Anti-collision plate; 454. Roller; 5. Linkage structure; 51. Driven gear; 52. Double-sided rack; 521. Slide groove; 53. First connecting block; 54. Second connecting block; 55. Limiting structure; 551. Rectangular frame; 552. Second guide post; 553. Limiting fixing block; 554. Third spring; 56. Support structure; 561. Second U-shaped frame; 562. Clamping rod; 563. Base; 564. Third guide post; 565. Slider. Detailed Implementation

[0033] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figures 1 to 12As shown: A rice planting fertilization device with range adjustment function includes a storage box 1, a walking mechanism 2, a stirring mechanism 3, a fertilization structure 4, and a linkage structure 5. The storage box 1 has a storage hopper 11 inside, and an inlet 12 is opened at the upper end of the storage box 1. The walking mechanism 2 is located at the lower end of the storage box 1, and the walking mechanism 2 can change the height of the storage box 1 to adapt to rice of different heights. The stirring mechanism 3 is used to stir the liquid and solid in the storage hopper 11 to make the liquid and solid mix evenly. The stirring mechanism 3 includes a main rotating shaft 32, stirring blades 31, and a drive structure 33. The main rotating shaft 32 is located inside the storage hopper 11, and both ends of the main rotating shaft 32 extend out of the storage box 1. The stirring blades 31 are sleeved on the main rotating shaft 32. The drive structure 33 is located at the upper end of the storage box 1. The main shaft 32 is used to drive the main shaft 32 to rotate; there are two fertilizer structures 4, which are symmetrically arranged about the middle surface of the storage box 1. The fertilizer structure 4 is located at the lower end of the storage box 1. The fertilizer structure 4 includes an adjustable bracket 41, a pressure boosting pipe 42 and a conveying pipe 43. One side of the adjustable bracket 41 is hinged to the storage box 1, and the state of the adjustable bracket 41 can be rotated from vertically downward to tilted upward. The pressure boosting pipe 42 is connected to the lower end of the storage box 1 and is used to increase the pressure when the fertilizer is discharged. One end of the conveying pipe 43 is connected to the pressure boosting pipe 42, and the other end of the conveying pipe 43 is connected to a nozzle. The conveying pipe 43 is mounted on the adjustable bracket 41; the linkage structure 5 is used to transmit the power of the main shaft 32 to the two adjustable brackets 41. The linkage structure 5 drives the two adjustable brackets 41 to move synchronously in opposite directions.

[0035] Before fertilization, water and solid fertilizer are placed into the storage bin 11 through the inlet 12. The stirring mechanism 3 starts working, and the drive structure 33 drives the main shaft 32 to rotate. The main shaft 32 drives the stirring blades 31 to rotate, and at the same time, the main shaft 32 drives the two adjustable supports 41 to move. After the stirring blades 31 have mixed the water and solid fertilizer evenly, the traveling mechanism 2 moves along the direction of rice planting. Then, the pressurization pipe 42 draws out the fertilizer from the storage bin 1, and the fertilizer is discharged along the conveying pipe 43. During this process, the main shaft 32 continuously drives the stirring blades 31 to stir the fertilizer to prevent solids from settling at the bottom of the storage bin 1. The movement range of the two adjustable supports 41 is vertical. From vertically downward to tilted upward, when the adjustable bracket 41 is downward, the discharge end of the conveying pipe 43 is downward, and the fertilizer is sprayed directly below the storage box 1. When the adjustable bracket 41 rotates in the tilted upward direction, the fertilizer flies to both sides of the storage box 1 under the action of the pressurizing pipe 42 and centrifugal force, so that the fertilizer can cover a larger area. By setting the adjustable bracket 41 and the linkage structure 5, the linkage structure 5 transmits the power of the stirring mechanism 3 to the adjustable bracket 41, causing the adjustable bracket 41 to swing back and forth in the range from vertically downward to tilted upward, so that the rice below the fertilizer device can be fertilized at the same time during the process of fertilizing the rice around the fertilizer device.

[0036] Reference Figure 4 , Figure 5 and Figure 6 As shown: The adjustable bracket 41 includes a first U-shaped frame 411, a secondary rotating shaft 412, a crossbeam 413, and two elastic connecting structures 414; the open end of the first U-shaped frame 411 faces away from the storage box 1, and slots 4111 are provided at both ends of the first U-shaped frame 411; the secondary rotating shaft 412 is connected to the other end of the first U-shaped frame 411, and both ends of the secondary rotating shaft 412 are axially connected to the storage box 1, and the linkage structure 5 drives the secondary rotating shaft 412 to rotate; the crossbeam 413 is located at the open end of the first U-shaped frame 411; the two elastic connecting structures 414... The elastic connection structures 414 are respectively disposed at both ends of the crossbeam 413, and the two elastic connection structures 414 are respectively disposed in the two slots 4111. One end of the elastic connection structure 414 is connected to the crossbeam 413, and the other end of the elastic connection structure 414 is connected to the first U-shaped frame 411. The elastic connection structure 414 includes a first guide post 4141 and a first spring 4142. The first guide post 4141 is inserted into the slot 4111, and the first spring 4142 is sleeved on the first guide post 4141.

[0037] The linkage structure 5 drives the secondary rotating shaft 412 to rotate, and the secondary rotating shaft 412 drives the first U-shaped frame 411 to swing. The first U-shaped frame 411 drives the crossbeam 413 to swing through two elastic connection structures 414. The crossbeam 413 is far away from the secondary main rotating shaft 32, and the centrifugal force on the crossbeam 413 is large. The centrifugal force is applied to the first spring 4142, and the first spring 4142 is compressed. The first guide column 4141 slides out of the slot 4111, and the crossbeam 413 moves away from the first U-shaped frame 411. The crossbeam 413 drives the outlet of the conveying pipe 43 away from the storage box 1, which increases the distance between the outlet of the conveying pipe 43 and the storage box 1, thereby increasing the area of ​​fertilizer spraying in the conveying pipe 43.

[0038] Reference Figure 4 , Figure 5 and Figure 6 As shown: The adjustable bracket 41 also includes a range control structure 415, which is located in the middle of the first U-shaped frame 411. The range control structure 415 includes a screw sleeve 4151, a screw rod 4152, and a first limiting ring 4153. One end of the screw sleeve 4151 is connected to the first U-shaped frame 411, and the other end of the screw sleeve 4151 faces the crossbeam 413. One end of the screw rod 4152 is located inside the screw sleeve 4151, and the other end of the screw rod 4152 passes through the crossbeam 413. The first limiting ring 4153 is connected to the other end of the screw rod 4152. The range control structure 415 also includes a rotating disk 4154, which is connected to the other end of the screw rod 4152.

[0039] When the crossbeam 413 is subjected to centrifugal force and moves away from the first U-shaped frame 411, the fertilizer spraying range may exceed the rice planting area, resulting in fertilizer waste. By setting a range control structure 415, the operator rotates the rotating disk 4154 based on the distance between one side of the storage box 1 and the furthest rice plant. The rotating disk 4154 drives the screw 4152 to rotate, and the screw 4152 moves along the screw sleeve 4151. The screw 4152 and the screw sleeve 4151 are self-locking. When the operator stops rotating the rotating disk 4154, the screw 4152 and the screw sleeve 4151 are locked together. The total length of 151 remains unchanged. The crossbeam 413 is subjected to centrifugal force and elastic connection structure 414. The crossbeam 413 can move along the screw 4152. When the crossbeam 413 moves to abut against the first limiting ring 4153, the crossbeam 413 stops moving. The maximum distance between the crossbeam 413 and the first U-shaped frame 411 is controlled between the first limiting ring 4153 and the first U-shaped frame 411. The range of movement of the crossbeam 413 and the conveying pipe 43 is thus controlled, thereby realizing the control of the fertilizer spraying range and preventing the fertilizer from being sprayed outside the rice planting area.

[0040] Reference Figure 5 and Figure 6 As shown: the range control structure 415 also includes a second limiting ring 4155, which is sleeved on the screw 4152. The second limiting ring 4155 and the first limiting ring 4153 are respectively arranged on both sides of the crossbeam 413.

[0041] During the swinging process, the crossbeam 413 moves along the screw 4152, and the crossbeam 413 drives the outlet of the conveying pipe 43 to move. The fertilizer sprayed from the conveying pipe 43 is also in a swinging state, which may easily lead to uneven spraying of fertilizer on rice. By setting a second limiting ring 4155, the second limiting ring 4155 and the first limiting ring 4153 fix the position of the crossbeam 413, so that the distance between the crossbeam 413 and the first U-shaped frame 411 remains unchanged, and the movement trajectory of the crossbeam 413 remains unchanged, so that the fertilizer sprayed from the conveying pipe 43 is evenly spread on the rice.

[0042] Reference Figure 4 and Figure 7 As shown: The fertilization structure 4 also includes a nozzle extension structure 44, which includes a rectangular ring 441, an extension rod 442, and a locking structure 443; the rectangular ring 441 is fixedly installed on the crossbeam 413; the extension rod 442 is slidably disposed inside the rectangular ring 441, and one end of the delivery pipe 43 is disposed inside the extension rod 442; the locking structure 443 is used to fix the relative position of the extension rod 442 and the rectangular ring 441.

[0043] When the rice planting area is large, the maximum fertilization range of the fertilizer applicator is the maximum range controlled by the range control structure 415 because the adjustment range of the two adjustable supports 41 is limited. The fertilizer applicator needs to spray fertilizer along the paddy field multiple times to fertilize the rice. By setting the nozzle extension structure 44, before the operator operates the fertilizer applicator to fertilize, the operator first pushes the extension rod 442 to move within the rectangular ring 441. The extension rod 442 drives the discharge port of the conveying pipe 43 to move. Then, the locking structure 443 is used to fix the position of the extension rod 442 and the rectangular ring 441, so that the extension rod 442 will not move along the rectangular ring 441 during the swing. The distance between the discharge port of the conveying pipe 43 and the first U-shaped frame 411 is increased again, thereby further increasing the fertilizer spraying range and reducing the number of times and working time of the fertilizer applicator in the paddy field.

[0044] Reference Figure 7 and Figure 8 As shown: Several notches and slots 4421 are provided on the wall surface of the extension rod 442; the locking structure 443 includes a U-shaped frame 4431, a locking block 4432, a push plate 4433, and a second spring 4434; the opening of the U-shaped frame 4431 faces the rectangular ring 441, and the U-shaped frame 4431 is connected to the rectangular ring 441; the locking block 4432 is disposed inside the U-shaped frame 4431, and one end of the locking block 4432 passes through the rectangular ring 441 and engages with the notches and slots 4421; one end of the push plate 4433 is connected to the locking block 4432, and the other end of the push plate 4433 extends out as a crossbeam 413; the second spring 4434 is disposed between the U-shaped frame 4431 and the push plate 4433, and the second spring 4434 is used to apply a force toward the extension rod 442 to the push plate 4433.

[0045] The operator first applies a force away from the rectangular ring 441 to the push plate 4433, compressing the second spring 4434. The push plate 4433 then moves the locking block 4432 away from the notch 4421. The operator then pulls the extension rod 442 to move along the rectangular ring 441, causing the conveying pipe 43 to move. Once the outlet of the conveying pipe 43 is adjusted to the appropriate position, the operator removes the force applied to the push plate 4433. The second spring 4434 resets and pushes the push plate 4433 and the locking block 4432 toward the extension rod 442. The locking block 4432 passes through the side wall of the rectangular ring 441 and engages in the notch 4421, thus securing the extension rod 442 and the rectangular ring 441.

[0046] Reference Figure 4 and Figure 9As shown: The fertilizer application structure 4 also includes a buffer anti-collision structure 45, which is used to prevent the adjustable bracket 41 from colliding with the storage box 1. The buffer anti-collision structure 45 includes a mounting base 451, an elastic shaft 452, an anti-collision plate 453 and a roller 454. The mounting base 451 is connected to the storage box 1, the elastic shaft 452 is mounted on the mounting base 451, one end of the anti-collision plate 453 is connected to the elastic shaft 452, and the roller 454 is axially connected to the other end of the anti-collision plate 453. The roller 454 contacts the first U-shaped frame 411, and the two roll relative to each other to reduce wear.

[0047] When the adjustable bracket 41 rotates in an upward tilting direction, it is driven by inertia to continue moving toward the storage box 1. The adjustable bracket 41 may collide with the storage box 1. By setting a buffer anti-collision structure 45, after the secondary rotating shaft 412 drives the first U-shaped frame 411 to rotate to the uppermost position, the two ends of the first U-shaped frame 411 contact the two rollers 454 respectively. The first U-shaped frame 411 applies a force to the rollers 454. The force is transmitted to the elastic shaft 452 through the anti-collision plate 453. The anti-collision plate 453 rotates, and the elastic shaft 452 applies a reverse force to the anti-collision plate 453, so that the movement tendency of the anti-collision plate 453 is gradually suppressed, thereby avoiding the collision between the adjustable bracket 41 and the storage box 1.

[0048] Reference Figure 1 and Figure 10 As shown: The linkage structure 5 includes two driven gears 51, a double-sided rack 52, a first connecting block 53, and a second connecting block 54; the two driven gears 51 are respectively arranged on both sides of the double-sided rack 52, the double-sided rack 52 moves up and down in the vertical direction, the driven gears 51 mesh with the double-sided rack 52 for transmission, and the driven gears 51 are connected to the auxiliary rotating shaft 412; one end of the first connecting block 53 is connected to the main rotating shaft 32; one end of the second connecting block 54 is axially connected to one end of the double-sided rack 52, and the other end of the second connecting block 54 is axially connected to the other end of the first connecting block 53.

[0049] When the main shaft 32 rotates, it drives the first connecting block 53 to rotate. The first connecting block 53 drives the second connecting block 54 to move. The second connecting block 54 drives the double-sided rack 52 to reciprocate in the vertical direction. When the double-sided rack 52 moves downward, it drives the two driven gears 51 to rotate. The two driven gears 51 drive the two adjustable brackets 41 to swing in the upward direction. When the double-sided rack 52 moves upward, it drives the two driven gears 51 to rotate. The two driven gears 51 drive the two adjustable brackets 41 to swing in the downward direction, thereby realizing the linkage between the two adjustable brackets 41 and the stirring mechanism 3, reducing the use of the driver.

[0050] Reference Figure 10 and Figure 11As shown: The linkage structure 5 also includes a limiting structure 55, which is used to limit the movement direction of the double-sided rack 52. The limiting structure 55 includes a rectangular frame 551, a second guide post 552, a limiting fixing block 553 and a third spring 554. The rectangular frame 551 is connected to the double-sided rack 52. The axis of the second guide post 552 is parallel to the movement direction of the double-sided rack 52. The two ends of the second guide post 552 are respectively connected to the two ends of the rectangular frame 551. One end of the limiting fixing block 553 is slidably disposed on the second guide post 552. The other end of the limiting fixing block 553 is connected to the storage box 1. The third spring 554 is sleeved on the second guide post 552.

[0051] During the movement of the second connecting block 54, it applies a force to both sides of the double-sided rack 52, causing the double-sided rack 52 to tilt. By setting the limiting structure 55, during the movement of the double-sided rack 52, the second guide post 552 always moves up and down along the limiting fixing block 553 under the limitation of the limiting fixing block 553. The second guide post 552 also restricts the movement direction of the double-sided rack 52, thereby preventing the double-sided rack 52 from tilting due to the force of the second connecting block 54.

[0052] Reference Figure 10 and Figure 12 As shown: The linkage structure 5 also includes a support structure 56, which provides support force to the double-sided rack 52 from both sides. The double-sided rack 52 has a sliding groove 521 on both sides. The support structure 56 includes a second U-shaped frame 561, two clamping rods 562, a base 563, a third guide post 564, and a slider 565. The open end of the second U-shaped frame 561 wraps around the double-sided rack 52. The two clamping rods 562 are respectively set at both ends of the second U-shaped frame 561. One end of the clamping rod 562 is connected to the second U-shaped frame 561, and the other end of the clamping rod 562 abuts in the sliding groove 521. The base 563 is set on the storage box 1. The third guide post 564 is parallel to the second guide post 562. The two ends of the third guide post 564 are respectively connected to the two ends of the base 563. The slider 565 is slidably set on the third guide post 564 and is connected to the second U-shaped frame 561.

[0053] As the double-sided rack 52 moves upward, the distance between its upper end and the limiting block 553 becomes relatively large. Simultaneously, because the second guide post 552 can move along the limiting block 553, a gap exists between the second guide post 552 and the limiting block 553. Therefore, even after the double-sided rack 52 reaches its uppermost position, it may still tilt. By setting up the support structure 56, two clamping rods 562 apply force to the double-sided rack 52 from both sides, preventing it from tilting to either side. Furthermore, as the double-sided rack 52 moves up and down, the friction between the clamping rods 562 and the rack 52 causes the clamping rods 562 to move. The clamping rods 562 then drive the second U-shaped frame 561 and the slider 565 to move along the third guide post 564, ensuring that the double-sided rack 52 maintains its vertical movement at any point.

[0054] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A rice planting fertilization device with range adjustment function, characterized in that, It includes a storage bin (1), a walking mechanism (2), a mixing mechanism (3), a fertilizer application structure (4), and a linkage structure (5); The storage bin (1) is equipped with a storage silo (11), and the upper end of the storage bin (1) is provided with a material inlet (12). The walking mechanism (2) is located at the lower end of the storage box (1). The walking mechanism (2) can change the height of the storage box (1) to adapt to rice of different heights. The stirring mechanism (3) is used to stir the liquid and solid in the storage bin (11) so that the liquid and solid are mixed evenly. The stirring mechanism (3) includes a main rotating shaft (32), stirring blades (31) and a drive structure (33). The main rotating shaft (32) is set inside the storage bin (11), and both ends of the main rotating shaft (32) extend out of the storage box (1). The stirring blades (31) are sleeved on the main rotating shaft (32). The drive structure (33) is set at the upper end of the storage box (1). The drive structure (33) is used to drive the main rotating shaft (32) to rotate. There are two fertilizer application structures (4). The two fertilizer application structures (4) are symmetrically arranged about the middle surface of the storage box (1). The fertilizer application structure (4) is located at the lower end of the storage box (1). The fertilizer application structure (4) includes an adjustable bracket (41), a pressure boosting pipe (42) and a conveying pipe (43). One side of the adjustable bracket (41) is hinged to the storage box (1), and the state of the adjustable bracket (41) can be rotated from vertical downward to tilted upward. The pressure boosting pipe (42) is connected to the lower end of the storage box (1). The pressure boosting pipe (42) is used to increase the pressure when the fertilizer is discharged. One end of the conveying pipe (43) is connected to the pressure boosting pipe (42), and the other end of the conveying pipe (43) is connected to a nozzle. The conveying pipe (43) is installed on the adjustable bracket (41). The linkage structure (5) is used to transmit the power of the main shaft (32) to the two adjustable supports (41), and the linkage structure (5) drives the two adjustable supports (41) to move in opposite directions synchronously. The linkage structure (5) includes two driven gears (51), a double-sided rack (52), a first connecting block (53), and a second connecting block (54); Two driven gears (51) are respectively set on both sides of the double-sided rack (52). The double-sided rack (52) moves up and down in the vertical direction. The driven gears (51) mesh with the double-sided rack (52) for transmission. One end of the first connecting block (53) is connected to the main rotating shaft (32); One end of the second connecting block (54) is axially connected to one end of the double-sided rack (52), and the other end of the second connecting block (54) is axially connected to the other end of the first connecting block (53); The adjustable bracket (41) includes a first U-shaped frame (411), a secondary rotating shaft (412), a crossbeam (413), and two elastic connection structures (414). The open end of the first U-shaped frame (411) is away from the storage box (1), and slots (4111) are provided at both ends of the first U-shaped frame (411). The secondary shaft (412) is connected to the other end of the first U-shaped frame (411), and both ends of the secondary shaft (412) are axially connected to the storage box (1); The crossbeam (413) is located at the open end of the first U-shaped frame (411); Two elastic connection structures (414) are respectively set at both ends of the crossbeam (413), and the two elastic connection structures (414) are respectively set in two slots (4111). One end of the elastic connection structure (414) is connected to the crossbeam (413), and the other end of the elastic connection structure (414) is connected to the first U-shaped frame (411). The adjustable bracket (41) also includes a range control structure (415), which is located in the middle of the first U-shaped bracket (411). The range control structure (415) includes a screw sleeve (4151), a screw (4152), and a first limiting ring (4153). One end of the threaded sleeve (4151) is connected to the first U-shaped frame (411), and the other end of the threaded sleeve (4151) faces the crossbeam (413). One end of the screw (4152) is set inside the screw sleeve (4151), and the other end of the screw (4152) passes through the crossbeam (413). The first limiting ring (4153) is connected to the other end of the screw (4152); The elastic connection structure (414) includes a first guide post (4141) and a first spring (4142). The first guide post (4141) is inserted into the slot (4111), and the first spring (4142) is sleeved on the first guide post (4141).

2. The rice planting fertilization device with range adjustment function according to claim 1, characterized in that, The range control structure (415) also includes a second limiting ring (4155), which is sleeved on the screw (4152). The second limiting ring (4155) and the first limiting ring (4153) are respectively set on both sides of the crossbeam (413).

3. The rice planting fertilization device with range adjustment function according to claim 1, characterized in that, The fertilization structure (4) also includes a nozzle extension structure (44), which includes a rectangular ring (441), an extension rod (442), and a locking structure (443). A rectangular ring (441) is fixedly installed on the crossbeam (413); The extension rod (442) is slidably disposed inside the rectangular ring (441), and one end of the conveying pipe (43) is disposed inside the extension rod (442); The locking structure (443) is used to fix the relative position of the extension rod (442) and the rectangular ring (441).

4. A rice planting fertilization device with range adjustment function according to claim 3, characterized in that, The extension rod (442) has several notches (4421) on its wall surface; the locking structure (443) includes a U-shaped frame (4431), a locking block (4432), a push plate (4433), and a second spring (4434). The opening of the U-shaped frame (4431) faces the rectangular ring (441), and the U-shaped frame (4431) is connected to the rectangular ring (441); The locking block (4432) is set inside the U-shaped frame (4431), and one end of the locking block (4432) passes through the rectangular ring (441) and engages with the notch (4421); One end of the push plate (4433) is connected to the locking block (4432), and the other end of the push plate (4433) extends out as a crossbeam (413). The second spring (4434) is disposed between the U-shaped frame (4431) and the push plate (4433), and the second spring (4434) is used to apply a force to the push plate (4433) toward the extension rod (442).

5. A rice planting fertilization device with range adjustment function according to claim 3, characterized in that, The fertilizer application structure (4) also includes a buffer structure (45) to prevent the adjustable support (41) from colliding with the storage bin (1).

6. A rice planting fertilization device with range adjustment function according to claim 1, characterized in that, The linkage structure (5) also includes a limiting structure (55), which is used to limit the movement direction of the double-sided rack (52).

7. A rice planting fertilization device with range adjustment function according to claim 6, characterized in that, The linkage structure (5) also includes a support structure (56) which provides support force to the double-sided rack (52) from both sides.

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