Pneumatic rice side-depth precise fertilization device

Abstract

The invention discloses a pneumatic type rice side-depth precise fertilization device, and relates to the technical field of rice fertilization devices, the pneumatic type rice side-depth precise fertilization device comprises a rack assembly, the rack assembly comprises a rack main body, a ploughing claw is fixed on one side of the rack main body, a fixing frame is fixed on the other side of the rack main body, a supporting plate is fixed on the surface of the fixing frame, and a pneumatic device is arranged on the rack main body; the surface of the supporting plate is rotationally connected with moving wheels. The device can discharge materials only when the moving wheels fall to the ground and rotate, the situation of material leakage in the device transferring process is avoided, automatic air blowing is carried out in the fertilizer discharging process, fertilizer forms a gas-solid mixture to be rapidly discharged, three gears are manually adjusted, the fertilizer is discharged in different quantities, and the fertilizer discharging efficiency is improved. When the gears are adjusted, the blowing pressure changes in a self-adaptive mode along with the different gears, the whole structure uses self power of the fertilizer applicator as a driving source, external mechanical equipment does not need to be used for driving, and cost is greatly saved.

Description

Technical Field

[0001] This invention relates to the field of rice fertilization equipment technology, and in particular to a pneumatic rice side-deep precision fertilization device. Background Technology

[0002] As one of my country's main food crops, the precision of fertilization during rice cultivation directly affects crop yield, fertilizer utilization, and the farmland ecological environment. Side-deep fertilization technology, which can accurately apply fertilizer to the deep soil on the side of rice plants, reduces fertilizer volatilization and loss, and promotes root absorption, has become one of the core technologies for high-yield and high-quality rice cultivation. With the promotion of agricultural mechanization, pneumatic rice side-deep fertilization devices, with their advantages of uniform fertilization and high operating efficiency, are gradually replacing manual fertilization and are widely used in large-scale rice planting scenarios.

[0003] Current pneumatic rice side-deep fertilization devices are prone to leakage when not in operation. The fertilizer baffles often require manual opening and closing, which is cumbersome. They also rely on external motors and air pumps, resulting in high manufacturing costs and energy consumption. They have many potential failure points and are difficult to maintain. After adjusting the gear, the blowing pressure needs to be manually adjusted, which is not adaptable and is not user-friendly for beginners. This can easily lead to clogging or fertilizer loss. When adjusting the gear, fertilizer can easily get stuck on the surface of the fertilizer discharge wheel, causing the gear adjustment to become stuck. This requires manual cleaning, which reduces the efficiency of operation. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing pneumatic rice side-deep precision fertilization devices, the present invention is proposed.

[0006] Therefore, the problem that this invention aims to solve is that the operation is cumbersome, it relies on external motors and air pumps for driving, has high manufacturing costs and energy consumption, poor adaptability, is not user-friendly for beginners, the gear adjustment is prone to jamming, and it requires manual cleaning of fertilizer residue.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pneumatic rice side-deep precision fertilization device, comprising a frame assembly including a frame body, a plowing claw fixed to one side of the frame body, a fixing frame fixed to the other side of the frame body, a support plate fixed to the surface of the fixing frame, a movable wheel rotatably connected to the surface of the support plate, a first chain disposed between one side of the movable wheel and one side of the fixing frame, a second chain disposed on the surface of the other side of the fixing frame, and a hopper fixed between the two sides of the top of the frame body. The bottom of the main frame is fixed with fertilizer burying claws, and a fertilizer application assembly is set on the top of the main frame, including a fertilizer application chamber fixed to the bottom of the hopper. The bottom of the fertilizer application chamber is provided with a fertilizer outlet. The inner cavity of the fertilizer application chamber is provided with a rotating drum. The inner cavity of the rotating drum is provided with an adjusting component. The surface of the rotating drum is provided with a pushing component. One side of the adjusting component is provided with a chip removal component. The top of the inner cavity of the fertilizer application chamber is provided with a fertilizer discharge component. The bottom of one side of the fertilizer application chamber is provided with a baffle. The surface of the fertilizer application chamber is provided with an air blowing component. The bottom of one side of the hopper is provided with a trigger component.

[0008] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, wherein: the surface of the fixed frame is provided with an arc-shaped hole, the inner cavity of the arc-shaped hole is provided with a bolt rod, the inner cavity of the fixed frame is rotatably connected to a rotating shaft, the support plate is fixed to the surface of the rotating shaft, the bottom of the inner cavity of the hopper is provided with a material hole, the inner cavity of the rotating shaft is rotatably connected to a drive shaft, and the surface of the drive shaft and the surface of the moving wheel shaft are both fixedly fitted with first sprockets, and the two first sprockets are connected by a first chain drive.

[0009] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the fertilizer outlet includes a fertilizer outlet pipe fixed to the bottom of the fertilizer chamber, a fertilizer outlet cylinder fixed to the bottom of the fertilizer outlet pipe, a fertilizer guide claw fixed to one end of the fertilizer outlet cylinder, and a fertilizer outlet hole opened on the surface of the baffle.

[0010] In a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the adjusting component includes a rotating rod rotatably connected to the inner cavity of a rotating cylinder. An inclined wheel is fixedly fitted around the outer ring of the rotating rod. An adjusting cylinder is fixed to one end of the rotating rod. Inclined holes are provided on both sides of the adjusting cylinder. A connecting block is fixed to one side of the outer ring of the adjusting cylinder. A connecting rod is fixed to one end of the adjusting cylinder. A snap-fit ​​component is provided within the inner cavity of the inclined hole. The snap-fit ​​component includes a sliding rod disposed within the inner cavity of the inclined hole. A locking rod is fixed to the top of the sliding rod. A first tension spring is fitted around the outer ring of the locking rod. One end of the first tension spring is fixed to the inner wall of the rotating cylinder, and the other end of the first tension spring is fixed to the surface of the sliding rod.

[0011] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the fertilizer discharge component includes a first fertilizer discharge wheel rotatably sleeved on the outer ring of the rotating drum and a second fertilizer discharge wheel fixedly sleeved on the outer ring of the rotating drum. The surface of the first fertilizer discharge wheel is provided with a slot, and the surface of the second fertilizer discharge wheel is fixed with an insert plate. The insert plate is slidably connected to the inner cavity of the slot. The inner ring of the first fertilizer discharge wheel is provided with a connecting groove, and the inner ring of the second fertilizer discharge wheel is provided with a locking hole.

[0012] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the air blowing component includes a fixed shell fixed to the surface of the fertilizer chamber, a first air bladder fixed in the inner cavity of the fixed shell, a Venturi tube fixed to one side of the first air bladder, one end of the Venturi tube fixed to the surface of the fertilizer outlet pipe, a guide block fixed to one side of the first air bladder, the guide block being slidably connected to the inner cavity of the fixed shell, and an arc-shaped block fixed to one side of the guide block.

[0013] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the chip removal component includes a second airbag fixed to one side of the adjusting cylinder, a pressure plate fixed to one side of the second airbag, the outer ring of the pressure plate fixed to the inner wall of the rotating cylinder, an air guide pipe fixed to one side of the second airbag, the air guide pipe passing through the pressure plate and extending to the inner cavity of the second fertilizer wheel, and a plurality of evenly arranged air outlet pipes fixed to the tail end of the air guide pipe, the outlet end of the air outlet pipe being located on the surface of the second fertilizer wheel.

[0014] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the pushing component includes a mounting shell fixed to the outer ring of the rotating drum, a pushing rod slidably connected to the inner cavity of the mounting shell, a second tension spring sleeved on the outer ring of the pushing rod, one end of the second tension spring being fixed to the outer ring of the pushing rod, and the other end of the second tension spring being fixed to the outer ring of the rotating drum.

[0015] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, the triggering element includes a support frame fixed to one side of the top of the main frame, a rotating roller rotatably connected between the support frame and one side of the bottom of the hopper, a spiral groove is opened on the outer ring of the rotating roller, a movable block is movably sleeved on the outer ring of the rotating roller, and a ball is movably embedded in the inner cavity of the movable block, and the ball is slidably connected to the inner cavity of the spiral groove.

[0016] As a preferred embodiment of the pneumatic rice side-deep precision fertilization device of the present invention, wherein: the outer ring of the rotating roller and the outer ring of the rotating shaft are both fixedly fitted with third sprockets, a third chain is fitted between the two third sprockets, a cover is fixed to one side of the moving block, a spring is fixed to the bottom of the inner cavity of the cover, a clamping plate is fixed to the top of the spring, the top of the clamping plate penetrates through the cover and is slidably connected to the cover, a slot for the clamping plate to be inserted is opened at one end of the baffle, and the moving block is clamped to the surface of the baffle.

[0017] The beneficial effects of this invention are as follows: By setting up a fertilizer applicator, the gravity of the moving wheels when they land drives the baffle to open for material discharge. The rotation of the moving wheels drives the fertilizer discharge component to rotate, ensuring that the device can only discharge material when the moving wheels are on the ground and rotating, thus preventing leakage during transport. Furthermore, automatic air blowing during discharge utilizes the Venturi effect to blow fertilizer out with high-pressure gas, forming a gas-solid mixture for rapid discharge and achieving high efficiency. Three manual adjustment settings allow for different amounts of fertilizer discharged, with the air pressure adapting to the setting, saving time on manual pressure adjustment and eliminating complex steps, making it particularly suitable for beginners. The overall structure utilizes the fertilizer applicator's own power as the drive source, eliminating the need for external mechanical equipment and significantly reducing costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a pneumatic rice side-deep precision fertilization device.

[0020] Figure 2 This is a bottom view of the structure of a pneumatic rice side-deep precision fertilization device.

[0021] Figure 3 This is a partial structural diagram of a pneumatic rice side-deep precision fertilization device.

[0022] Figure 4 This is a structural diagram of the fertilization component of a pneumatic rice side-deep precision fertilization device.

[0023] Figure 5 This is a partial structural diagram of the fertilization component of a pneumatic rice side-deep precision fertilization device.

[0024] Figure 6This is a partial structural diagram of the adjusting component of a pneumatic rice side-deep precision fertilization device.

[0025] Figure 7 This is a partial cross-sectional view of the air blowing component and rotating drum of a pneumatic rice side-deep precision fertilization device.

[0026] Figure 8 Left sectional view of the air blowing and pushing components of a pneumatic rice side-deep precision fertilization device.

[0027] Figure 9 This is an exploded view of a portion of the adjusting component of a pneumatic rice side-deep precision fertilization device.

[0028] Figure 10 This is a partial structural exploded view of the rotating drum and fertilizer discharge component of a pneumatic rice side-deep precision fertilization device.

[0029] Figure 11 This is an exploded view of a partial structure of the triggering element of a pneumatic rice side-deep precision fertilization device.

[0030] Figure 12 This is an exploded view of the rotating shaft and support plate of a pneumatic rice side-deep precision fertilization device.

[0031] Figure 13 The diagram shows the sectional view from below of the fertilizer discharge component of a pneumatic rice side-deep precision fertilization device.

[0032] In the diagram: 1. Frame assembly; 11. Frame body; 12. Hopper; 121. Material hole; 13. Plowing claw; 14. Fertilizer burying claw; 15. Support plate; 16. Moving wheel; 17. First chain; 171. Drive shaft; 18. Second chain; 19. Fixing frame; 191. Rotating shaft; 192. Arc-shaped hole; 193. Bolt rod; 2. Fertilizer application assembly; 21. Fertilizer bin; 22. Fertilizer outlet; 221. Fertilizer outlet 222. Pipe; 223. Fertilizer discharge cylinder; 23. Fertilizer guide claw; 23. Adjusting component; 231. Rotating rod; 232. Circular plate; 233. Protrusion; 234. Pointer; 235. Adjusting cylinder; 2351. Slanted hole; 2352. Connecting block; 236. Connecting rod; 237. Snap-fit ​​component; 2371. Snap-fit ​​rod; 2372. Slide rod; 2373. First tension spring; 238. Inclined wheel; 24. Fertilizer discharge component; 241. The... 242. First row of feed rollers; 243. Second row of feed rollers; 244. Slot; 245. Insert plate; 246. Connecting groove; 247. Locking hole; 25. Baffle; 251. Feed outlet; 26. Air blowing component; 261. Fixing shell; 262. Venturi tube; 263. First airbag; 264. Guide block; 265. Arc block; 27. Rotary drum; 271. Adjustment hole; 28. Chip conveying component; 281. Second airbag; 2 82. Pressure plate; 283. Air guide pipe; 284. Air outlet pipe; 29. ​​Pushing component; 291. Mounting shell; 292. Push rod; 293. Second tension spring; 210. Trigger; 2101. Third chain; 2102. Rotary roller; 2103. Support frame; 2104. Spiral groove; 2105. Ball bearing; 2106. Moving block; 2107. Cover; 2108. Spring; 2109. Clamping plate. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example 1, referring to Figure 1 and Figure 2This is the first embodiment of the present invention, which provides a pneumatic side-deep precision fertilization device for rice. The pneumatic side-deep precision fertilization device for rice includes a frame assembly 1 and a fertilization assembly 2. By setting the frame assembly 1 and the fertilization assembly 2, the device can discharge material only when it is on the ground and moving, avoiding material leakage during the transportation of the device. It has a high-efficiency material discharge effect and can be manually adjusted to three levels. When adjusting the level, the blowing pressure adapts to different levels, saving the time of manual adjustment of air pressure. There is no need for complicated adjustment steps, which is especially suitable for novice users. Furthermore, the overall structure uses the power of the fertilizer applicator itself as the driving source, without the need for external mechanical equipment, which greatly saves costs.

[0037] Specifically, the frame assembly 1 includes a frame body 11, a plowing claw 13 fixed on one side of the frame body 11, a fixing frame 19 fixed on the other side of the frame body 11, a support plate 15 fixed on the surface of the fixing frame 19, a moving wheel 16 rotatably connected to the surface of the support plate 15, the moving wheel 16 is adapted to a water depth of 3cm-10cm, a first chain 17 is provided between one side of the moving wheel 16 and one side of the fixing frame 19, a second chain 18 is provided on the surface of the other side of the fixing frame 19, a hopper 12 is fixed between the two sides of the top of the frame body 11, and a fertilizer burying claw 14 is fixed at the bottom of the frame body 11.

[0038] Specifically, the fertilizer application component 2 is located on the top of the main frame 11 and includes a fertilizer application chamber 21 fixed to the bottom of the hopper 12. The bottom of the fertilizer application chamber 21 is provided with a fertilizer outlet 22. The inner cavity of the fertilizer application chamber 21 is provided with a rotating drum 27. The inner cavity of the rotating drum 27 is provided with an adjusting component 23. The surface of the rotating drum 27 is provided with a pushing component 29. One side of the adjusting component 23 is provided with a chip removal component 28. The top of the inner cavity of the fertilizer application chamber 21 is provided with a fertilizer discharge component 24. One side of the bottom of the fertilizer application chamber 21 is provided with a baffle 25. The surface of the fertilizer application chamber 21 is provided with an air blowing component 26. One side of the bottom of the hopper 12 is provided with a trigger component 210.

[0039] Example 2, refer to Figures 2-13 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0040] Specifically, it also includes an arc-shaped hole 192 on the surface of the fixed frame 19, a bolt rod 193 in the inner cavity of the arc-shaped hole 192, a rotating shaft 191 rotatably connected to the inner cavity of the fixed frame 19, a support plate 15 fixed to the surface of the rotating shaft 191, a material hole 121 at the bottom of the inner cavity of the hopper 12, the inside of the hopper 12 is inclined to guide fertilizer to the material hole 121, a drive shaft 171 rotatably connected to the inner cavity of the rotating shaft 191, a first sprocket fixedly sleeved on the surface of the drive shaft 171 and the surface of the axis of the moving wheel 16, and the two first sprockets are connected by a first chain 17.

[0041] Specifically, the fertilizer outlet 22 includes a fertilizer outlet pipe 221 fixed to the bottom of the fertilizer application chamber 21, a fertilizer outlet cylinder 222 fixed to the bottom of the fertilizer outlet pipe 221, a fertilizer guide claw 223 fixed to one end of the fertilizer outlet cylinder 222, and a fertilizer outlet hole 251 opened on the surface of the baffle 25.

[0042] The fertilizer-guiding claw 223, fertilizer-burying claw 14, and plowing claw 13 are all made of 65Mn spring steel and are treated with hot-dip galvanizing and epoxy resin coating for corrosion protection, ensuring that they will not rust even after long-term contact with mud and water. The fertilizer-guiding claw 223 is inserted into the soil at an angle of 30° to avoid damaging the rice roots.

[0043] The arc-shaped hole 192 cooperates with the bolt rod 193 to make the moving wheel 16 rotate around the rotating shaft 191 after landing, so that the baffle 25 can be triggered to open when the device lands. At the same time, the plowing claw 13 and the fertilizer burying claw 14 work together to ensure accurate fertilization depth.

[0044] Specifically, the adjusting component 23 includes a rotating rod 231 rotatably connected to the inner cavity of the rotating cylinder 27. The outer ring of the rotating rod 231 is fixedly fitted with an inclined wheel 238. One end of the rotating rod 231 is fixed with an adjusting cylinder 235. Inclined holes 2351 are provided on both sides of the adjusting cylinder 235. A connecting block 2352 is fixed on one side of the outer ring of the adjusting cylinder 235. A connecting rod 236 is fixed on one end of the adjusting cylinder 235. A snap-fit ​​component 237 is provided in the inner cavity of the inclined hole 2351. The snap-fit ​​component 237 includes a sliding rod 2372 provided in the inner cavity of the inclined hole 2351. A locking rod 2371 is fixed on the top of the sliding rod 2372. A first tension spring 2373 is fitted on the outer ring of the locking rod 2371. One end of the first tension spring 2373 is fixed to the inner wall of the rotating cylinder 27, and the other end of the first tension spring 2373 is fixed to the surface of the sliding rod 2372.

[0045] With the cooperation of the rotating rod 231, adjusting cylinder 235 and snap-fit ​​part 237, three gears can be switched precisely, with an angle difference of 15° between adjacent gears. With the connecting rod 236, the fertilizer discharge parts 24 of multiple fertilizer chambers 21 can be adjusted simultaneously. The adjustment process is completed in one step, which greatly improves the adjustment efficiency.

[0046] Specifically, the fertilizer discharge component 24 includes a first fertilizer discharge wheel 241 rotatably sleeved on the outer ring of the rotating drum 27 and a second fertilizer discharge wheel 242 fixedly sleeved on the outer ring of the rotating drum 27. The surface of the first fertilizer discharge wheel 241 is provided with a slot 243, and the surface of the second fertilizer discharge wheel 242 is fixed with an insert plate 244. The insert plate 244 is slidably connected to the inner cavity of the slot 243. The inner ring of the first fertilizer discharge wheel 241 is provided with a connecting groove 245, and the inner ring of the second fertilizer discharge wheel 242 is provided with a locking hole 246.

[0047] The first row of fertilizer rollers 241 and the second row of fertilizer rollers 242 are slidably engaged through slots 243 and insert plates 244. When adjusting the gear, the volume of the feed trough can be changed. At the same time, the locking rod 2371 is embedded in the locking hole 246 to lock, ensuring accurate and stable fertilizer discharge, and preventing loosening during rotation.

[0048] The "first gear", "second gear" and "third gear" of the fertilizer discharge component 24 correspond to tank capacities of 3g, 6g and 9g respectively, and the corresponding air pressures are 0.02MPa, 0.04MPa and 0.06MPa respectively.

[0049] Specifically, the air blowing component 26 includes a fixed shell 261 fixed to the surface of the fertilizer application chamber 21. A first air bladder 263 is fixed in the inner cavity of the fixed shell 261. A venturi tube 262 is fixed to one side of the first air bladder 263. One end of the venturi tube 262 is fixed to the surface of the fertilizer outlet pipe 221. A guide block 264 is fixed to one side of the first air bladder 263. The guide block 264 is slidably connected to the inner cavity of the fixed shell 261. An arc-shaped block 265 is fixed to one side of the guide block 264.

[0050] Specifically, the chip removal component 28 includes a second airbag 281 fixed to one side of the adjusting cylinder 235. A pressure plate 282 is fixed to one side of the second airbag 281. The outer ring of the pressure plate 282 is fixed to the inner wall of the rotating cylinder 27. An air guide pipe 283 is fixed to one side of the second airbag 281. The air guide pipe 283 passes through the pressure plate 282 and extends to the inner cavity of the second row of fertilizer rollers 242. Several evenly arranged air outlet pipes 284 are fixed to the tail end of the air guide pipe 283. The outlet end of the air outlet pipe 284 is located on the surface of the second row of fertilizer rollers 242.

[0051] The pressure plate 282 is fixed to the inner wall of the rotating cylinder 27, which can support the second airbag 281 and ensure that there is a force point when the adjusting cylinder 235 moves to squeeze the second airbag 281, thus ensuring stable squeezing of the second airbag 281.

[0052] Specifically, the pusher 29 includes a mounting shell 291 fixed to the outer ring of the rotating drum 27. A push rod 292 is slidably connected to the inner cavity of the mounting shell 291. A second tension spring 293 is sleeved on the outer ring of the push rod 292. One end of the second tension spring 293 is fixed to the outer ring of the push rod 292, and the other end of the second tension spring 293 is fixed to the outer ring of the rotating drum 27.

[0053] The inclined wheel 238 of the adjusting component 23 cooperates with the push rod 292 to squeeze the first air bag 263. The blowing force and gear are adaptively matched through the venturi tube 262, eliminating the need for manual air pressure adjustment and avoiding material blockage or fertilizer loss.

[0054] Specifically, the trigger 210 includes a support frame 2103 fixed to one side of the top of the frame body 11. A rotating roller 2102 is rotatably connected between the support frame 2103 and one side of the bottom of the hopper 12. The outer ring of the rotating roller 2102 has a spiral groove 2104. A movable block 2106 is movably sleeved on the outer ring of the rotating roller 2102. A ball bearing 2105 is movably embedded in the inner cavity of the movable block 2106. The ball bearing 2105 is slidably connected to the inner cavity of the spiral groove 2104.

[0055] Specifically, the outer ring of the roller 2102 and the outer ring of the shaft 191 are both fixedly fitted with third sprockets. A third chain 2101 is fitted between the two third sprockets. A cover 2107 is fixed on one side of the moving block 2106. A spring piece 2108 is fixed at the bottom of the inner cavity of the cover 2107. A locking plate 2109 is fixed at the top of the spring piece 2108. The top of the locking plate 2109 passes through the cover 2107 and is slidably connected to the cover 2107. A slot for the locking plate 2109 to be inserted is opened at one end of the baffle 25. The moving block 2106 is engaged with the surface of the baffle 25.

[0056] The spiral groove 2104 of the rotating roller 2102 cooperates with the ball 2105 to smoothly convert the rotational motion into the linear motion of the moving block 2106, greatly reducing the transmission friction and making the baffle 25 open / close smoothly. The moving wheel 16 rotates and then opens the baffle 25. When no fertilizer is applied, the baffle 25 naturally blocks the fertilizer to prevent leakage.

[0057] The movable wheel 16 works with the trigger 210. When the movable wheel 16 lands and rotates, it can drive the movable block 2106 to automatically open the baffle 25 through the first chain 17 and the third chain 2101 in conjunction with the drive shaft 171 and the rotating roller 2102. When not in operation, the baffle automatically closes, completely preventing material leakage. It does not require manual operation and is suitable for beginners.

[0058] The cover 2107 protects the spring 2108 and the clamping plate 2109 from corrosion by field impurities, ensures the elastic reset function of the spring 2108, and limits the movement of the clamping plate 2109 to make it move stably.

[0059] Example 3, referring to Figures 2-13 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0060] Specifically, the surface of the movable wheel 16 is fixed with anti-slip teeth, and a round hole for mounting the bolt rod 193 is opened on the top of one side of the support plate 15. One end of the bolt rod 193 is threaded with a nut, and the bolt rod 193 is slidably connected to the inner wall of the arc-shaped hole 192.

[0061] The anti-slip teeth on the surface of the mobile wheel 16 can enhance the friction with the soil in the field, prevent slipping during operation, and ensure stable power transmission. As the core power source of the device, it does not require an additional motor drive. It directly links the subsequent fertilizer discharge and air blowing actions through rotation, which greatly reduces energy consumption and failure risk.

[0062] Specifically, the position of the feed hole 121 corresponds to the position of the fertilizer bin 21. A circular plate 232 is fixedly sleeved on one end of the outer ring of the rotating drum 27. A protrusion 233 is fixed on one side of the circular plate 232. A pointer 234 is fixed on one end of the rotating rod 231. The pointer 234 is slidably connected to the surface of the circular plate 232. The protrusion 233 is made of elastic rubber.

[0063] The elastic rubber protrusions 233 on the circular plate 232 cooperate with the pointer 234 to provide clear tactile positioning feedback for gear adjustment, allowing novices to quickly and accurately find the gear. The rotating rod 231 serves as the core of adjustment, and rotating it will link the adjusting cylinder 235, making the operation convenient and efficient.

[0064] Specifically, one end of the push rod 292 is a smooth arc surface, and the other end of the push rod 292 is a smooth inclined surface. The position of the inclined wheel 238 corresponds to the position of the push rod 292, and the inclined wheel 238 is slidably connected to the inclined surface of the push rod 292. The position of the arc block 265 corresponds to the position of the push rod 292, and the surface of the arc block 265 is slidably connected to the arc surface of the push rod 292.

[0065] The inclined wheel 238 rotates with the rotating rod 231, pressing the inclined surface of the push rod 292. The second tension spring 293 drives the push rod 292 to automatically reset, ensuring that the push rod stroke is consistent every time the rotating drum 27 rotates, realizing adaptive matching of blowing force and gear, without the need for manual adjustment of air pressure.

[0066] Specifically, the adjusting cylinder 235 is slidably connected to the inner wall of the rotating cylinder 27, one end of the connecting block 2352 is located in the inner cavity of the connecting groove 245, one end of the connecting rod 236 extends to the bottom of the fertilizer bin 21 on the other side and is fixed with the same adjusting cylinder 235, the adjusting cylinder 235 and the connecting rod 236 are staggered so that an adjusting cylinder 235 is provided at the bottom of each fertilizer bin 21.

[0067] Specifically, an adjustment hole 271 is provided on the surface of the rotating drum 27 at the slide rod 2372. The adjustment hole 271 consists of a sliding hole and three gear holes. The sliding hole provides guidance for the movement of the connecting block 2352, ensuring a smooth and uninterrupted gear switching process. The three gear holes are arranged sequentially on one side of the sliding hole, and the angle difference between two adjacent gear holes and the axis of the rotating drum 27 is 15°. The angular spacing of the three locking holes 246 is the same as the angular spacing of the three gear holes.

[0068] The three settings are "Level 1" small displacement, "Level 2" medium displacement, and "Level 3" large displacement, with fertilizer application rates of 20 kg / mu, 35 kg / mu, and 50 kg / mu respectively, meeting the quantitative requirements for precision fertilization of rice.

[0069] Specifically, one end of the slide rod 2372 passes through the rotating drum 27 and is slidably connected to the rotating drum 27. One end of the slide rod 2372 is located inside the connecting groove 245. There are three connecting grooves 245. One end of the outer ring of the drive shaft 171 and one end of the outer ring of the rotating drum 27 are both fixedly fitted with second sprockets. The two second sprockets are connected by a second chain 18.

[0070] When in use, the upper and lower connecting shafts at the front end of the main frame 11 of the device are connected to the traction mechanism of the tractor. The device is lifted as a whole by the tractor's traction mechanism. Solid granular fertilizer is put into the hopper 12. The baffle 25 is inserted into the fertilizer application hopper 21 to block the bottom of the fertilizer discharge part 24. At this time, the material cannot be discharged.

[0071] According to the required fertilization needs, determine the gear: "Gear 1" small displacement, "Gear 2" medium displacement, and "Gear 3" large displacement. Initially, the connecting block 2352 on the surface of the adjusting cylinder 235 is located inside the large displacement gear hole of "Gear 3". When adjusting the gear, first fix the rotating cylinder 27 with one hand and press the rotating rod 231 with the other hand. The rotating rod 231 drives the adjusting cylinder 235 to move, so that the connecting block 2352 on the surface of the adjusting cylinder 235 moves from the current gear hole to the sliding hole. At the same time, when the adjusting cylinder 235 moves, it drives the inclined holes 2351 on both sides to move, so that the sliding rod 2372, under the action of the inclined holes 2351, drives the locking rod 2371 to move out of the locking hole 246 inside the inner wall of the second row of fertilizer wheels 242.

[0072] When the adjusting cylinder 235 moves, it squeezes the second airbag 281. After the second airbag 281 is compressed, it squeezes out gas and blows air onto the surface of the second row of fertilizer rollers 242 through the air guide pipe 283 and the air outlet pipe 284 to remove the fertilizer residue on the surface of the second row of fertilizer rollers 242 and prevent the adjustment gear from getting stuck. At this time, the first tension spring 2373 is stretched, and the adjusting cylinder 235 loses its limit and can rotate.

[0073] Then, rotate the lever 231 of the adjusting component 23 counterclockwise. The lever 231 drives the pointer 234 to slide on the surface of the circular plate 232. The pointer 234 is engaged with the protrusion 233 on the circular plate 232. The three gears correspond to different protrusion 233 positions. When the lever 231 rotates to the position of an adjacent protrusion 233, the lever 231 is initially positioned by the elastic material of the protrusion 233. At this time, the lever 231 rotates exactly 15°, and the connecting block 2352 is exactly located at the medium displacement gear hole of the "second gear". At the same time, the connecting block 2352 drives the first row of fat wheels 241 to rotate 15°.

[0074] Since the second row of fertilizer wheels 242 is fixed to the surface of the rotating drum 27, it cannot rotate. Therefore, the slot 243 on the first row of fertilizer wheels 241 rotates 15° relative to the insert plate 244 of the second row of fertilizer wheels 242, thereby reducing the fertilizer receiving cavity formed by the first row of fertilizer wheels 241 and the second row of fertilizer wheels 242 by 15°. At this time, the locking rod 2371 moves to the locking hole 246 in the middle position of the inner wall of the second row of fertilizer wheels 242. The first tension spring 2373 resets, so that the locking rod 2371 is locked into the locking hole 246 in the middle position for fixation, so that the first row of fertilizer wheels 241 and the second row of fertilizer wheels 242 can rotate synchronously, achieving the effect of adjusting the fertilizer capacity to "second gear". After releasing the rotating rod 231, the second airbag 281 resets, thereby driving the adjusting cylinder 235 to reset, so that the connecting block 2352 moves into the middle displacement gear hole of "second gear".

[0075] During the rotation of the rotating rod 231, it also drives the inclined wheel 238 on its surface to rotate synchronously by 15°. The gentle slope of the inclined wheel 238 is close to the inclined surface of the push rod 292. At this time, the second tension spring 293 drives the push rod 292 to move into the rotating cylinder 27, which increases the distance between the push rod 292 and the arc block 265. This shortens the distance that the push rod 292 pushes the arc block 265 to move when the rotating cylinder 27 rotates, reduces the compression of the first airbag 263, and reduces the blowing air pressure of the venturi tube 262, so that the blowing air pressure is at a moderate level to match the displacement effect in "second gear". The operation method of "first gear" is the same as the operation method of "second gear".

[0076] When fertilization is required, the device is pulled to the starting position of the field operation, ensuring that the main frame 11 is placed stably, the hopper 12 is not tilted, and the fertilizer discharge cylinder 222 is aligned with the side of the rice plant. The device is pushed by the tractor's traction mechanism to make the moving wheel 16 land. The moving wheel 16 lands first, and under the action of the ground, it stops the moving wheel 16 from moving further downward, while the main frame 11 continues to move downward. At this time, the support plate 15 rotates around the rotating shaft 191, which synchronously drives the bolt rod 193 to rotate inside the arc-shaped hole 192. During the rotation of the rotating shaft 191, it drives the third sprocket on its surface to rotate. Under the transmission action of the third chain 2101, it drives the third sprocket on the surface of the rotating roller 2102 to rotate, thereby driving the rotating roller 2102 to rotate.

[0077] When the roller 2102 rotates, the spiral groove 2104 on its surface causes the ball bearing 2105 to move, thereby driving the moving block 2106 to move, and causing the baffle 25 to move synchronously. When the baffle 25 moves, the fertilizer outlet hole 251 on the baffle 25 is aligned with the discharge port below the fertilizer discharge component 24. At this time, the fertilizer can be discharged downward through the fertilizer outlet hole 251. During cleaning, the fertilizer inside the hopper 12 needs to be discharged. At this time, the clamping plate 2109 is manually pulled down to compress the spring piece 2108 until the clamping plate 2109 is moved out of the groove on the baffle 25. After the baffle 25 loses its limit, it can be manually moved so that the fertilizer outlet hole 251 on the baffle 25 is aligned with the discharge port below the fertilizer discharge component 24 for manual discharge.

[0078] When the tractor traction device is used for mobile fertilization, the moving wheel 16 rotates. At this time, the moving wheel 16 drives the drive shaft 171 to rotate through the first chain 17. The drive shaft 171 drives the rotating drum 27 to rotate. During the rotation of the rotating drum 27, the fertilizer discharge component 24 is driven to rotate. The fertilizer inside the hopper 12 enters the fertilizer receiving cavity of the fertilizer discharge component 24 through the material hole 121. When the receiving cavity rotates to the bottom, the fertilizer falls into the fertilizer outlet pipe 221 due to gravity.

[0079] The rotating drum 27 synchronously drives the pusher 29 to rotate, causing the arc surface of the push rod 292 of the pusher 29 to contact the arc block 265, thereby pushing the guide pressure block 264 to compress the first airbag 263. The gas inside the first airbag 263 is synchronously blown into the fertilizer outlet pipe 221 through the venturi tube 262, forming a gas-solid mixture with the fertilizer inside and quickly entering the fertilizer outlet cylinder 222. As the fertilizer-guiding claw 223 on the front side of the fertilizer outlet cylinder 222 moves forward with the device, it will lead out a groove to accommodate the fertilizer. After the fertilizer inside the fertilizer outlet cylinder 222 falls into the groove, the fertilizer-burying claw 14 moving forward from the rear will dig up the soil on the side and bury the soil on the groove, thus burying the fertilizer and achieving the fertilization effect.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pneumatic rice side-deep precision fertilization device, characterized in that: include, The frame assembly (1) includes a frame body (11), a plowing claw (13) fixed on one side of the frame body (11), a fixing frame (19) fixed on the other side of the frame body (11), a support plate (15) fixed on the surface of the fixing frame (19), a moving wheel (16) rotatably connected to the surface of the support plate (15), a first chain (17) provided between one side of the moving wheel (16) and one side of the fixing frame (19), a second chain (18) provided on the surface of the other side of the fixing frame (19), a hopper (12) fixed between the two sides of the top of the frame body (11), a fertilizer burying claw (14) fixed at the bottom of the frame body (11), and, The fertilizer application component (2) is located on the top of the main body of the frame (11) and includes a fertilizer application chamber (21) fixed to the bottom of the hopper (12). The bottom of the fertilizer application chamber (21) is provided with a fertilizer outlet (22). The inner cavity of the fertilizer application chamber (21) is provided with a rotating drum (27). The inner cavity of the rotating drum (27) is provided with an adjusting component (23). The surface of the rotating drum (27) is provided with a pushing component (29). One side of the adjusting component (23) is provided with a chip removal component (28). The top of the inner cavity of the fertilizer application chamber (21) is provided with a fertilizer discharge component (24). The bottom of one side of the fertilizer application chamber (21) is provided with a baffle (25). The surface of the fertilizer application chamber (21) is provided with an air blowing component (26). The bottom of one side of the hopper (12) is provided with a trigger component (210).

2. The pneumatic rice side-deep precision fertilization device as described in claim 1, characterized in that: The surface of the fixed frame (19) is provided with an arc-shaped hole (192), and the inner cavity of the arc-shaped hole (192) is provided with a bolt rod (193). The inner cavity of the fixed frame (19) is rotatably connected to a rotating shaft (191). The support plate (15) is fixed to the surface of the rotating shaft (191). The bottom of the inner cavity of the hopper (12) is provided with a material hole (121). The inner cavity of the rotating shaft (191) is rotatably connected to a drive shaft (171). The surface of the drive shaft (171) and the surface of the axis of the moving wheel (16) are both fixedly fitted with first sprockets. The two first sprockets are connected by a first chain (17).

3. The pneumatic rice side-deep precision fertilization device as described in claim 2, characterized in that: The fertilizer outlet component (22) includes a fertilizer outlet pipe (221) fixed to the bottom of the fertilizer application chamber (21), a fertilizer outlet cylinder (222) fixed to the bottom of the fertilizer outlet pipe (221), a fertilizer guide claw (223) fixed to one end of the fertilizer outlet cylinder (222), and a fertilizer outlet hole (251) opened on the surface of the baffle (25).

4. The pneumatic rice side-deep precision fertilization device as described in claim 3, characterized in that: The adjusting component (23) includes a rotating rod (231) rotatably connected to the inner cavity of the rotating cylinder (27). An inclined wheel (238) is fixedly fitted around the outer ring of the rotating rod (231). An adjusting cylinder (235) is fixed to one end of the rotating rod (231). Inclined holes (2351) are provided on both sides of the adjusting cylinder (235). A connecting block (2352) is fixed to one side of the outer ring of the adjusting cylinder (235). A connecting rod (236) is fixed to one end of the adjusting cylinder (235). The inclined holes... The inner cavity of (2351) is provided with a snap-fit ​​component (237), the snap-fit ​​component (237) includes a slide rod (2372) disposed in the inner cavity of the inclined hole (2351), the top of the slide rod (2372) is fixed with a snap rod (2371), the outer ring of the snap rod (2371) is fitted with a first tension spring (2373), one end of the first tension spring (2373) is fixed to the inner wall of the rotating cylinder (27), and the other end of the first tension spring (2373) is fixed to the surface of the slide rod (2372).

5. The pneumatic rice side-deep precision fertilization device as described in claim 4, characterized in that: The fertilizer discharge component (24) includes a first fertilizer discharge wheel (241) rotatably sleeved on the outer ring of the rotating drum (27) and a second fertilizer discharge wheel (242) fixedly sleeved on the outer ring of the rotating drum (27). The surface of the first fertilizer discharge wheel (241) is provided with a slot (243), and the surface of the second fertilizer discharge wheel (242) is fixed with an insert plate (244). The insert plate (244) is slidably connected to the inner cavity of the slot (243). The inner ring of the first fertilizer discharge wheel (241) is provided with a connecting groove (245), and the inner ring of the second fertilizer discharge wheel (242) is provided with a locking hole (246).

6. The pneumatic rice side-deep precision fertilization device as described in claim 5, characterized in that: The air blowing component (26) includes a fixed shell (261) fixed to the surface of the fertilizer application chamber (21). A first air bladder (263) is fixed in the inner cavity of the fixed shell (261). A venturi tube (262) is fixed to one side of the first air bladder (263). One end of the venturi tube (262) is fixed to the surface of the fertilizer outlet pipe (221). A guide block (264) is fixed to one side of the first air bladder (263). The guide block (264) is slidably connected to the inner cavity of the fixed shell (261). An arc-shaped block (265) is fixed to one side of the guide block (264).

7. The pneumatic rice side-deep precision fertilization device as described in claim 6, characterized in that: The chip removal component (28) includes a second airbag (281) fixed to one side of the adjusting cylinder (235). A pressure plate (282) is fixed to one side of the second airbag (281). The outer ring of the pressure plate (282) is fixed to the inner wall of the rotating cylinder (27). A guide pipe (283) is fixed to one side of the second airbag (281). The guide pipe (283) passes through the pressure plate (282) and extends to the inner cavity of the second row of fertilizer wheels (242). A number of evenly arranged air outlet pipes (284) are fixed to the tail end of the guide pipe (283). The outlet end of the air outlet pipe (284) is located on the surface of the second row of fertilizer wheels (242).

8. The pneumatic rice side-deep precision fertilization device as described in claim 7, characterized in that: The pusher (29) includes a mounting shell (291) fixed to the outer ring of the rotating drum (27). The inner cavity of the mounting shell (291) is slidably connected to a push rod (292). The outer ring of the push rod (292) is fitted with a second tension spring (293). One end of the second tension spring (293) is fixed to the outer ring of the push rod (292), and the other end of the second tension spring (293) is fixed to the outer ring of the rotating drum (27).

9. The pneumatic rice side-deep precision fertilization device as described in claim 8, characterized in that: The trigger (210) includes a support frame (2103) fixed to one side of the top of the frame body (11). A rotating roller (2102) is rotatably connected between the support frame (2103) and one side of the bottom of the hopper (12). The outer ring of the rotating roller (2102) is provided with a spiral groove (2104). A movable block (2106) is movably sleeved on the outer ring of the rotating roller (2102). A ball (2105) is movably embedded in the inner cavity of the movable block (2106). The ball (2105) is slidably connected to the inner cavity of the spiral groove (2104).

10. The pneumatic rice side-deep precision fertilization device as described in claim 9, characterized in that: The outer ring of the roller (2102) and the outer ring of the shaft (191) are both fixedly fitted with third sprockets. A third chain (2101) is fitted between the two third sprockets. A cover (2107) is fixed on one side of the moving block (2106). A spring piece (2108) is fixed at the bottom of the inner cavity of the cover (2107). A clamping plate (2109) is fixed at the top of the spring piece (2108). The top of the clamping plate (2109) passes through the cover (2107) and is slidably connected to the cover (2107). A slot for the clamping plate (2109) to be inserted is opened at one end of the baffle (25). The moving block (2106) is clamped on the surface of the baffle (25).

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