A device for simultaneously deep fertilizing in rice transplanting field
Patent Information
- Application Number
- CN202522432902.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-17
AI Technical Summary
[0004]现有技术通过侧深施肥筒同步插秧机插秧进行侧深施肥来提高侧深施肥的效率，但是，现有装置的送料方式为连续出料，无法根据插秧机行进速度、秧苗栽插密度精准调节送料量，易出现快行漏施、慢行多施现象，导致田间施肥均匀性差，部分区域水稻因养分不足长势瘦弱，部分区域因养分过剩出现徒长，影响整体产量
1、通过在出料管外周设置调节手轮，其轴杆与腔内的阀瓣固定连接，仅需人工转动手轮即可改变出料管的通流面积，实现施肥量的灵活调节，适配水稻不同生长期与土壤肥力差异的需求；送料组件中，伺服电机通过PLC控制器精准控制旋转主轴的转速，配合主轴外壁的C字形刮料环与弓字形套壳，刮料环转动时形成独立肥料容纳单元，实现间歇式定量送料，确保每单位时间内肥料输送量一致，避免因施肥不均导致的水稻生长差异，显著提升施肥均匀性；
Smart Images
Figure CN224818646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rice fertilization devices, and in particular to a device for simultaneous deep fertilization in rice transplanting fields. Background Technology
[0002] As a major grain crop in my country, the synergy between transplanting and fertilization directly determines the growth quality and yield of rice. In traditional rice cultivation, transplanting and fertilization are usually carried out independently: after the transplanter completes the seedling planting, additional fertilization is required through manual spreading or mechanical surface application. This transplanting-then-fertilizing model has drawbacks: firstly, fertilizer exposed on the soil surface is easily washed away by rain and evaporated by high temperatures, resulting in a fertilizer utilization rate of only 30%–40%. This not only wastes resources but may also lead to environmental problems such as excessive nutrients in the topsoil and eutrophication of water bodies; secondly, separate fertilization requires additional manpower, equipment, and time costs, extending the operation cycle and making it difficult to achieve precise matching of fertilizer and seedling roots, affecting nutrient supply during key growth stages such as tillering and heading.
[0003] The prior art CN118679920A discloses a synchronous device for side-deep fertilization during rice transplanting, including a fixed base for suspending the synchronous device. The fixed base is detachably connected to a side-deep fertilization cylinder, which includes an upper cylinder, a first lower cylinder, a second lower cylinder, a first sliding component, a second sliding component, and a third sliding component. The first lower cylinder and the second lower cylinder are slidably connected to each other through the first sliding component. The first lower cylinder and the second lower cylinder are slidably connected to the bottom of the inner wall of the upper cylinder through the second sliding component and the third sliding component, respectively. A fixed rod is fixedly connected to the center of the inner top wall of the upper cylinder, and a fertilizer blocking component is provided at the bottom of the fixed rod. Semi-circular soil pressing covers are fixedly connected to the bottom ends of the first lower cylinder and the second lower cylinder. A fertilizer storage component for storing and replenishing fertilizer is connected to the top of the upper cylinder through a flexible hose.
[0004] Existing technologies use side-deep fertilization cylinders and simultaneous rice transplanters to improve the efficiency of side-deep fertilization. However, the feeding method of existing devices is continuous discharge, which cannot accurately adjust the feeding amount according to the rice transplanter's travel speed and seedling planting density. This easily leads to missed fertilization in fast-moving rice and excessive fertilization in slow-moving rice, resulting in poor uniformity of fertilization in the field. In some areas, rice grows weak due to insufficient nutrients, while in other areas, excessive nutrients cause excessive vegetative growth, affecting the overall yield. Summary of the Invention
[0005] In order to solve the problems mentioned in the background art, the present invention provides a device for simultaneous deep fertilization in rice transplanting fields.
[0006] This utility model provides a synchronous deep fertilization device for rice transplanting fields, which adopts the following technical solution: It includes a fertilizer box, with a hopper installed through the bottom of the fertilizer box. The hopper has a triangular cross-section. Multiple sets of discharge pipes are installed through one side of the hopper. A feeding assembly for intermittent discharge is connected to one side of the hopper. The discharge pipes are connected to the feeding assembly. A soil-turning assembly for turning the soil is also provided on one side of the fertilizer box. The soil-turning assembly includes a crossbeam, vertical rods, and a plow. Multiple vertical rods are provided on one end face of the crossbeam. The plow is fixedly welded to the bottom end of the vertical rods. A telescopic pipe for dispensing fertilizer is provided on one side of the vertical rods. The upper end of the telescopic pipe is connected to the feeding assembly, and the lower end is connected to a fertilizer outlet nozzle. The fertilizer outlet nozzle is fixedly installed at the rear end of the plow.
[0007] As a further improvement of this utility model, the feeding assembly includes a fixed plate, a rotating spindle, two housings, and scraper rings. Fixed plates are fixed at both ends of one side of the hopper. The rotating spindle is movably mounted between the two fixed plates via bearings. A servo motor is fixed on one end face of one of the fixed plates. The output shaft of the servo motor passes through the fixed plate and is fixedly connected to one end of the rotating spindle. Multiple C-shaped scraper rings are evenly distributed and fixed on the outer wall of the rotating spindle. Two housings are fitted on the outer side of the rotating spindle, and the two housings are interlocked together. A feed pipe is provided through the outer wall of the housing near the hopper. The other end of the feed pipe is connected to the corresponding discharge pipe. A discharge pipe I is connected through the bottom end of the two housings. The lower end of the discharge pipe I is fixedly connected to one end of the telescopic pipe via a flexible hose.
[0008] As a further improvement of this utility model, an adjusting handwheel is provided on the outer wall of the discharge pipe, and the shaft of the adjusting handwheel passes through the discharge pipe and is placed inside it, and a valve disc is fixedly connected to it.
[0009] As a further improvement of this utility model, a top cover is movably connected to the top of the fertilizer box via a hinge, and fixing posts are fixedly installed on both sides of the bottom of the fertilizer box.
[0010] As a further improvement of this utility model, the outer walls of the two sleeves are in the shape of an "arch", the two sleeves are fitted on the outer wall of the rotating main shaft and rotatably connected to it, and the scraper ring is engaged in the corresponding two sleeve cavities.
[0011] As a further improvement of this utility model, multiple sets of fixing studs are fixedly provided on one side end face of the crossbeam, and multiple sets of fixing rings are symmetrically provided on both sides end faces of the vertical rod. The fixing rings are movably engaged with the outer wall of the corresponding fixing studs and fixed by nuts.
[0012] As a further improvement of this utility model, two mounting plates are fixedly installed at intervals on one end face of the crossbeam, and a limiting ring is fixedly installed on one side of the vertical rod. The telescopic tube is movably inserted into the limiting ring and fixed and limited thereto.
[0013] In summary, this utility model has the following beneficial technical effects: 1. By setting an adjusting handwheel on the outer periphery of the discharge pipe, its shaft is fixedly connected to the valve disc in the cavity. The flow area of the discharge pipe can be changed by manually turning the handwheel, so as to flexibly adjust the amount of fertilizer and adapt to the needs of different growth stages of rice and differences in soil fertility. In the feeding component, the servo motor precisely controls the speed of the rotating spindle through the PLC controller. With the C-shaped scraper ring and the bow-shaped sleeve on the outer wall of the spindle, the scraper ring forms an independent fertilizer receiving unit when it rotates, realizing intermittent quantitative feeding. This ensures that the amount of fertilizer delivered per unit time is consistent, avoids differences in rice growth caused by uneven fertilization, and significantly improves the uniformity of fertilization. 2. By setting fixing studs and multiple sets of fixing rings between the crossbeam and the vertical rod, and selecting fixing rings of different heights to engage with the fixing studs and lock them with nuts, the depth of the plow head into the soil can be quickly adjusted to adapt to different soil hardness and the requirements for deep fertilization of rice, improving the versatility of the device under various field conditions; the limiting ring on one side of the vertical rod can fix the telescopic tube to prevent the telescopic tube from shaking during operation and causing the fertilization position to deviate; the feeding outlet is fixed at the rear end of the plow head, which can accurately deliver fertilizer to the deep loosened soil with the plow head's turning action, greatly reducing the loss of fertilizer volatilization exposed to the air, and avoiding fertilizer loss caused by rainwater erosion, thus improving fertilizer utilization rate; the mounting plate can be directly adapted to existing rice transplanters, without the need for separately designed special equipment, effectively reducing user operating costs. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the device of this utility model; Figure 2 This is a three-dimensional structural diagram of the material box of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the fertilizer box of this utility model; Figure 4 This is a three-dimensional structural diagram of the feeding component of this utility model; Figure 5 This is a perspective view of the casing of this utility model; Figure 6 This is a three-dimensional structural diagram of the rotating spindle and scraper ring of this utility model; Figure 7 This is a schematic diagram of the three-dimensional structure of the soil-turning component of this utility model. Figure 1 ; Figure 8 This is a schematic diagram of the three-dimensional structure of the soil-turning component of this utility model. Figure 2 .
[0015] Figure label: 10. Fertilizer bin; 12. Hopper; 13. Feeding assembly; 14. Fixing stake; 15. Discharge pipe; 16. Adjusting handwheel; 17. Fixing plate; 18. Housing; 19. Feed pipe; 20. Crossbeam; 21. Vertical rod; 22. Plowhead; 23. Limiting ring; 24. Telescopic pipe; 25. Feeding outlet nozzle; 26. Fixing ring; 27. Fixing stud; 28. Mounting plate; 29. Discharge pipe I; 30. Servo motor; 31. Rotary spindle; 32. Scraper ring. Detailed Implementation
[0016] The following is in conjunction with the appendix Figure 1-8 The present invention will be described in further detail below.
[0017] This utility model discloses a synchronous deep fertilization device for rice transplanting, comprising a fertilizer box 10. A top cover is hinged to the top of the fertilizer box 10 for easy addition of fertilizer. Fixing posts 14 are fixedly installed on both sides of the bottom of the fertilizer box 10, facilitating installation on a rice transplanter or related walking equipment. A hopper 12 is installed through the bottom of the fertilizer box 10. The hopper 12 has a triangular cross-section, guiding fertilizer towards the discharge direction via an inclined surface. Gravity promotes the natural downward flow of fertilizer, significantly reducing fertilizer residue in the hopper 12 and lowering the risk of blockage. Multiple sets of discharge pipes 15 are installed through one side of the hopper 12. 5. It can meet the multi-row operation needs of rice transplanters, realize multi-channel synchronous fertilization, and improve operation efficiency. An adjusting handwheel 16 is provided on the outer wall of the discharge pipe 15. The shaft of the adjusting handwheel 16 passes through the discharge pipe 15 and is placed inside it. A valve is fixedly connected to it. By setting the adjusting handwheel 16 and the valve, the flow area of the discharge pipe 15 can be changed through simple mechanical operation, which is convenient. A feeding component 13 for intermittent discharge is connected to one side of the hopper 12. The intermittent discharge design of the feeding component 13 can be precisely matched with the traveling speed and transplanting frequency of the rice transplanter, avoiding the problem of local over-application or missed application caused by continuous fertilizer discharge, and ensuring the uniformity of fertilization in each row.
[0018] A soil-turning assembly for turning the soil is provided on one side of the fertilizer box 10. This assembly allows for pre-turning of the soil, laying the foundation for deeper burial of fertilizer later. The soil-turning assembly includes a crossbeam 20, vertical rods 21, and a plow head 22. Multiple vertical rods 21 are provided on one end face of the crossbeam 20, and multiple sets of fixing studs 27 are fixedly installed on one end face of the crossbeam 20. Multiple sets of fixing rings 26 are symmetrically provided on both ends face of the vertical rods 21. The fixing rings 26 are movably engaged with the outer wall of the corresponding fixing studs 27 and fixed with nuts. Two mounting plates 28 are fixedly installed at intervals on one end face of the crossbeam 20. The plow head 22 is fixedly welded to the bottom end of the vertical rods 21. A telescopic pipe 24 for dispensing fertilizer is provided on one side of the vertical rods 21. The upper end of the telescopic pipe 24 is connected to the feeding assembly 13, and the bottom end is connected to an applicator. The feed outlet 25 is fixedly installed at the rear end of the plow head 22. A limiting ring 23 is fixedly installed on one side of the vertical rod 21, and the telescopic tube 24 is movably inserted into the limiting ring 23 for fixation and limitation. By setting the crossbeam 20 and the vertical rod 21 in cooperation with the fixing ring 26 and the fixing stud 27, the depth of the plow head 22 into the soil can be quickly adjusted, which can adapt to different soil hardness and rice fertilization depth requirements, and improve the versatility of the device under different field conditions. After the plow head 22 turns the soil, the feed outlet 25 immediately follows to put fertilizer into the loosened soil, which greatly reduces the time that the fertilizer is exposed to the air and reduces volatilization loss. The limiting ring 23 is set to fix the telescopic tube 24 to prevent the telescopic tube 24 from shaking during operation. An installation plate 28 is installed on one side of the crossbeam 20 to facilitate installation with existing rice transplanters without the need for separate special equipment design, thus reducing user costs.
[0019] The feeding assembly 13 includes a fixed plate 17, a rotating spindle 31, two housings 18, and a scraper ring 32. Fixed plates 17 are fixed at both ends of one side of the hopper 12. The rotating spindle 31 is movably mounted between the two fixed plates 17 via bearings. By using fixed plates 17 in conjunction with bearings to support the rotating spindle 31, the friction during rotation of the rotating spindle 31 can be effectively reduced, ensuring stable rotational speed and avoiding speed fluctuations caused by excessive friction. A servo motor 30 is fixed to the side end face. The output shaft of the servo motor 30 passes through the fixing plate 17 and is fixedly connected to one end of the rotating spindle 31. Multiple C-shaped scraper rings 32 are evenly distributed and fixed on the outer wall of the rotating spindle 31. Two sleeves 18 are fitted on the outer side of the rotating spindle 31. The outer walls of the two sleeves 18 are in the shape of an "arch" (i.e., the sleeves 18 have a convex and concave structure in the horizontal direction) and are locked together, so that the scraper rings 32 are locked in the corresponding two sleeve cavities (protruding parts). This design allows it to mate with the rotating spindle 31 and the scraper ring 32. Two sleeves 18 are fitted onto the outer wall of the rotating spindle 31 and rotatably connected to it. During operation, the servo motor 30, via a PLC controller, precisely controls the rotational speed of the rotating spindle 31. Combined with the structural characteristics of the C-shaped scraper ring 32, its rotation forms an independent fertilizer receiving unit, enabling intermittent quantitative feeding. This ensures consistent fertilizer delivery per unit time, further improving the uniformity of multi-row fertilization and preventing problems caused by uneven fertilization. Differences in rice growth; A feed pipe 19 is provided through the outer wall of the casing 18 near the hopper 12. The other end of the feed pipe 19 is connected to the corresponding discharge pipe 15. A discharge pipe I 29 is connected through the bottom of the two casings 18. The lower end of the discharge pipe I 29 is fixedly connected to one end of the telescopic pipe 24 through a flexible hose. By setting the feed pipe 19 and the discharge pipe 15 to be connected through, and the discharge pipe I 29 and the telescopic pipe 24 to be connected through a flexible hose, a complete fertilizer passage from the hopper 12 to the discharge pipe I 29 is formed.
[0020] It should be noted that a PLC controller and a power supply are provided on one side of the fertilizer box 10. The PLC controller is electrically connected to the servo motor 30, and the power supply provides power to the PLC controller and the servo motor 30.
[0021] It should be noted that a blower can also be installed on one side of the fertilizer box 10 of this utility model. The blower's outlet pipe is connected to multiple sets of discharge pipes I29, which can blow fertilizer through the flexible hose into the telescopic pipe 24 and out from the application outlet 25, preventing water from the paddy field from flowing back into the application outlet 25 and ensuring the normal operation of fertilization. During the fertilization process, the plow head 22 turns over the soil to form a trench. The rear end of the plow head 22 is connected to a V-shaped backfill baffle. The movement of the plow head 22 drives the V-shaped backfill baffle to move, and the V-shaped backfill baffle backfills the soil on both sides of the trench, thereby preventing fertilizer loss.
[0022] This utility model discloses a synchronous deep fertilization device for rice transplanting. In use, firstly, open the top cover of the fertilizer tank 10 and add fertilizer suitable for the rice's growth stage into the fertilizer tank 10. After adding fertilizer, close the top cover to prevent the fertilizer from getting damp or leaking. Next, securely mount the entire device to the rice transplanter or its associated walking equipment using the fixing posts 14 on both sides of the fertilizer tank 10 and the mounting plate 28 on one side of the crossbeam 20 in the soil-turning assembly, ensuring the device is relatively fixed to the transplanter body. Then, adjust the connection between the vertical rod 21 and the crossbeam 20 according to the soil hardness and the required deep fertilization depth for rice. To adjust the height, select appropriate fixing rings 26 on both sides of the vertical rod 21 and engage them on the outer wall of the fixing stud 27. Then, tighten them with nuts. Simultaneously adjust the extension length of the telescopic tube 24 through the limiting ring 23 so that the distance between the bottom of the plow head 22 and the ground matches the target soil penetration depth. Finally, by rotating the adjusting handwheel 16 on the outer wall of the discharge pipe 15, drive the valve disc in the cavity of the discharge pipe 15 to rotate, adjust the flow area of the discharge pipe 15 to set the single fertilizer application amount, and at the same time check the power supply status and the connection status of the PLC controller to ensure that the servo motor 30 can receive PLC signals and work normally.
[0023] Then, the rice transplanter is started and moves in the field at a preset speed. At the same time, the PLC controller sends a control signal to the servo motor 30. After receiving the signal, the servo motor 30 drives the rotating spindle 31 to rotate at a speed that matches the rice transplanter's speed and transplanting frequency. When the rotating spindle 31 rotates, the C-shaped scraping ring 32 on its outer wall rotates in the cavities of the two bow-shaped shells 18. The scraping ring 32 scrapes the fertilizer in the hopper 12 that has entered the shell 18 through the discharge pipe 15 and the inlet pipe 19 into the shell 18 in the form of an independent receiving unit to the discharge pipe I 29 at the bottom of the shell 18. The fertilizer enters the telescopic pipe 24 connected to it by a hose through the discharge pipe I 29, and is then discharged from the application outlet 25 at the bottom of the telescopic pipe 24. At this time, the rice transplanter drives the soil turning component to move synchronously. The plow head 22 at the bottom of the vertical rod 21 first inserts into the soil and loosens the soil layer. Since the feed outlet 25 is fixed at the rear end of the plow head 22, it will follow the plow head's soil turning action and accurately put the fertilizer into the loosened deep soil, avoiding the fertilizer from being exposed to volatilization or washed away by rainwater.
[0024] Finally, after the transplanting and fertilization work in a certain field is completed, first turn off the power of the rice transplanter, and then disconnect the power supply of the device; open the top cover of the fertilizer box 10, clean out the remaining fertilizer in the fertilizer box 10, and then check and clean the residual fertilizer in the hopper 12, discharge pipe 15, casing 18, and telescopic pipe 24 to prevent fertilizer from clumping and blocking the channels and affecting the next use; at the same time, check whether the plow head 22 is worn or deformed, the fit between the scraper ring 32 and the inner wall of the casing 18, and whether the connecting bolts of the fixing pile 14 and the mounting plate 28 are loose. After all parts have been checked and maintained, remove the device from the rice transplanter to prepare for the next field operation.
Claims
1. A device for simultaneous deep fertilization in rice transplanting fields, comprising a fertilizer bin (10), characterized in that... A hopper (12) is installed through the bottom of the fertilizer box (10). The cross-section of the hopper (12) is triangular. Multiple sets of discharge pipes (15) are installed through one side of the hopper (12). A feeding assembly (13) for intermittent discharge is connected to one side of the hopper (12). The discharge pipes (15) are connected to the feeding assembly (13). A soil turning assembly for turning the soil is also provided on one side of the fertilizer box (10). The soil turning assembly includes a crossbeam. (20), vertical rod (21) and plow head (22), multiple vertical rods (21) are provided on one side end face of the crossbeam (20), the plow head (22) is welded and fixed to the bottom end of the vertical rod (21), and a telescopic tube (24) for dispensing fertilizer is provided on one side of the vertical rod (21). The upper end of the telescopic tube (24) is connected to the feeding assembly (13), and the bottom end is connected to the feeding outlet nozzle (25). The feeding outlet nozzle (25) is fixedly installed at the rear end of the plow head (22).
2. The synchronous deep fertilization device for rice transplanting fields according to claim 1, characterized in that... The feeding assembly (13) includes a fixed plate (17), a rotating spindle (31), two housings (18), and a scraper ring (32). Fixed plates (17) are fixed at both ends of one side of the hopper (12). The rotating spindle (31) is movably mounted between the two fixed plates (17) via bearings. A servo motor (30) is fixed to one end face of one of the fixed plates (17). The output shaft of the servo motor (30) passes through the fixed plate (17) and is fixedly connected to one end of the rotating spindle (31). Multiple C-shaped scraper rings (32) are evenly distributed and fixed on the outer wall. Two sleeves (18) are fitted on the outside of the rotating main shaft (31), and the two sleeves (18) are engaged with each other. A feed pipe (19) is provided through the outer wall of the sleeve (18) near the hopper (12). The other end of the feed pipe (19) is connected to the corresponding discharge pipe (15). A discharge pipe I (29) is connected through the bottom end of the two sleeves (18). The lower end of the discharge pipe I (29) is fixedly connected to one end of the telescopic pipe (24) through a flexible hose.
3. The synchronous deep fertilization device for rice transplanting fields according to claim 1, characterized in that... An adjusting handwheel (16) is provided on the outer wall of the discharge pipe (15). The shaft of the adjusting handwheel (16) passes through the discharge pipe (15) and is placed inside it, and a valve is fixedly connected to it.
4. The rice transplanting field synchronous deep fertilization device according to claim 1 is characterized in that a top cover is movably connected to the top of the fertilizer box (10) by a hinge, and fixing piles (14) are fixedly installed on both sides of the bottom of the fertilizer box (10).
5. The synchronous deep fertilization device for rice transplanting fields according to claim 2, characterized in that... The outer walls of the two shells (18) are in the shape of an "arch". The two shells (18) are fitted on the outer wall of the rotating main shaft (31) and are rotatably connected to it. The scraper ring (32) is engaged in the cavity of the corresponding two shells (18).
6. The synchronous deep fertilization device for rice transplanting fields according to claim 1, characterized in that... Multiple sets of fixing studs (27) are fixed on one side end face of the crossbeam (20), and multiple sets of fixing rings (26) are symmetrically provided on both sides end faces of the vertical rod (21). The fixing rings (26) are movably engaged with the outer wall of the corresponding fixing studs (27) and fixed by nuts.
7. The synchronous deep fertilization device for rice transplanting fields according to claim 1, characterized in that... Two mounting plates (28) are fixedly installed at intervals on one side end face of the crossbeam (20), and a limiting ring (23) is fixedly installed on one side of the vertical rod (21). The telescopic tube (24) is movably inserted into the limiting ring (23) and fixed and limited thereto.