Centralized air-blowing fertilizer and seed discharging system of seeder

Abstract

The concentrated air-blowing fertilizer and seed discharging system comprises an installation support, a material storage top box is fixedly installed at the top of the installation support, a sowing round box is installed at the bottom of the material storage top box through bolts, and an air supply top pipe is fixedly installed at the top end of one side of the sowing round box; an exhaust arc opening is formed in the middle of the other side of the seeding round box, a deslagging bevel opening is formed in the position, corresponding to the bottom of the air supply top pipe, of one side of the seeding round box, a seeding pipe is embedded in the position, corresponding to one side of the deslagging bevel opening, of one side of the seeding round box, and a seeding inclined pipe is fixedly connected to the bottom end of the seeding pipe; according to the utility model, broken seeds left on the side surface of the seeding turntable are separated through the deslagging bottom roller, so that the seeding turntable can drive new seeds again for seeding, further extrusion damage to the seeds caused by a mechanical structure in the seeding process is effectively prevented, the completeness of the seeds in the seeding process is improved, and the seeding efficiency is improved. And the seeding effect of the fertilizer and seed discharging system is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural fertilization technology, specifically a centralized air-blowing fertilizer and seed dispensing system for a seeder. Background Technology

[0002] A seeder is a planting machine that uses crop seeds as the object of sowing. Seeders used for a certain type or type of crop are often named after the crop type, such as grain strip seeder, corn hill seeder, cotton seeder, and hay spreader.

[0003] However, due to the lack of corresponding auxiliary sowing structures, the fertilizer and seed metering machine can only use mechanical methods for sowing. This makes it easy for fertilizer and seeds to be mechanically squeezed and damaged during the sowing process, reducing the fertilization and sowing effect of the fertilizer and seed metering machine. Utility Model Content

[0004] This utility model provides a centralized air-blowing fertilizer and seed dispensing system for a seeder, which can effectively solve the problem mentioned in the background art that the current fertilizer and seed dispensing machines lack corresponding auxiliary sowing structures, resulting in the machines having to use mechanical methods for sowing. This leads to the fertilizer and seeds being easily damaged by mechanical compression during sowing, reducing the fertilization and sowing effect of the fertilizer and seed dispensing machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centralized air-blowing fertilizer and seed dispensing system for a seeder, including a mounting bracket, on the top of which a material storage top box is fixedly installed;

[0006] The bottom of the storage top box is equipped with a pneumatic circulating seeding mechanism;

[0007] The pneumatic circulating seeding mechanism includes a seeding box, an air supply top pipe, an exhaust arc port, a slag discharge inclined port, a seeding pipe, a seeding inclined pipe, a drive motor, a seeding turntable, a combing side roller, a slag discharge bottom roller, a seeding soft wheel, an adjusting outer disc, an adjusting gear, a sliding arc plate, and an extrusion cone block.

[0008] A seeding box is bolted to the bottom of the storage box. An air supply pipe is fixedly installed on the top of one side of the seeding box. An exhaust arc is provided in the middle of the other side of the seeding box. A slag discharge oblique opening is provided on one side of the seeding box corresponding to the bottom of the air supply pipe. A seeding pipe is embedded in one side of the seeding box corresponding to the slag discharge oblique opening. A seeding oblique pipe is fixedly connected to the bottom of the seeding pipe.

[0009] A drive motor is fixedly installed in the middle of one side of the seeding box. The drive motor is powered by an external power source. A seeding turntable is fixedly engaged with the output shaft of the drive motor at a position inside the seeding box. A combing side roller is rotatably installed on the inner wall of the seeding box at a position corresponding to the back of the seeding turntable. A slag discharge bottom roller is rotatably connected to the inner wall of the seeding box at a position corresponding to the bottom of the back of the seeding turntable via a swing frame. A seeding soft wheel is rotatably installed on the inner wall of the seeding box at a position corresponding to the top of the seeding tube.

[0010] An adjusting outer plate is rotatably installed on the top of one side of the sowing box. An adjusting gear is fixedly connected to one end of the adjusting outer plate at a position inside the sowing box. A sliding arc plate is movably arranged on the inner wall of the sowing box at a position corresponding to the top of the adjusting gear. A pressing cone block is fixedly connected to one side of the sliding arc plate through a connecting plate.

[0011] Preferably, the side edge of the sowing turntable is provided with a seed dispensing through hole, the side cones of the combing side roller and the slag discharge bottom roller correspond to and fit with the seed dispensing through hole, the outer side of the sowing soft wheel is in close contact with the back of the sowing turntable, and the side of the extrusion cone block is flush with the edge of the seed dispensing through hole.

[0012] Preferably, the bottom of the mounting bracket is provided with a flexible connection support mechanism;

[0013] The flexible connection support mechanism includes a central connecting frame, a connecting horizontal frame, a mounting vertical frame, a shock-absorbing spring, a lifting swing frame, a return spring, and a return inclined wheel;

[0014] The mounting bracket is fixedly connected to a central connecting frame at its bottom end. A connecting crossbeam is rotatably connected to the top and bottom of one end of the central connecting frame. A mounting vertical frame is rotatably connected to the ends of the two connecting crossbeams. A shock-absorbing spring is engaged between the connecting crossbeam and the mounting vertical frame. A lifting swing frame is rotatably mounted at the bottom of the other end of the central connecting frame. A return spring is engaged between the outer side of the lifting swing frame and the central connecting frame. Return inclined wheels are symmetrically rotatably mounted on both sides of the bottom of the lifting swing frame.

[0015] Preferably, the end of the mounting frame is connected to the external connecting beam, and the central connecting frame and the connecting beam can be vertically translated.

[0016] Preferably, a flexible support and cleaning mechanism is provided at the bottom of the central connecting frame;

[0017] The flexible support cleaning mechanism includes a support arc-shaped wheel, a mounting frame, a connecting curved frame, an adjusting side plate, and a cleaning arc-shaped plate;

[0018] Both sides of the bottom surface of the central connecting frame are rotatably mounted with supporting arc-shaped wheels. The two sides of the central connecting frame are movably connected with mounting frames at the outer positions of the supporting arc-shaped wheels. The end of the mounting frame is connected to a connecting bend frame by bolts at the side position of the supporting arc-shaped wheel. The end of the connecting bend frame is connected to an adjusting side plate by bolts at the middle position of the side position of the supporting arc-shaped wheel. The end of the adjusting side plate is fixedly connected to a cleaning arc-shaped plate.

[0019] Preferably, the middle part of the side of the adjusting side plate is connected to the middle part of the side of the supporting arc wheel by bolts, the side of the cleaning arc plate and the outer side of the supporting arc wheel are tightly slidably fitted, and the cleaning arc plate can be elastically deformed.

[0020] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0021] 1. A pneumatic circulating seeding mechanism is installed. Seeds to be sown are introduced into the seeding cylinder through the discharge port at the bottom of the storage top box. A continuous high-speed airflow is introduced into the air supply pipe through an external air supply device, and the high-speed airflow inside the seeding cylinder is discharged through the exhaust arc port. The residue inside the seeding cylinder is discharged through the slag discharge inclined port. The high-speed airflow makes the seeds closely adhere to the seeding turntable and rotate synchronously. The combing side roller pushes out and separates the excess seeds adsorbed on the side of the seeding turntable, and sowing is carried out through the seeding inclined pipe. The slag discharge bottom roller separates the remaining broken seeds on the side of the seeding turntable, so that the seeding turntable can drive new seeds for sowing. This effectively prevents the mechanical structure from squeezing and damaging the seeds during the sowing process, improves the integrity of the seeds during the sowing process, and improves the sowing effect of the fertilizer and seed dispensing system.

[0022] 2. A flexible connection support mechanism is set up. The mounting bracket and its connected components are installed and connected through the central connecting frame. The corresponding agricultural transport equipment tail is connected to the seed dispensing system through the connecting horizontal frame and the mounting vertical frame. The connecting horizontal frame and the mounting vertical frame are flexibly limited by shock-absorbing springs, so that the central connecting frame can swing freely during the movement. Then, the lifting swing frame is flexibly limited by the return spring, so that the return inclined wheel can rise and fall with the lifting swing frame during the movement. This ensures that the fertilizer and seed dispensing system can remain stable during the movement, thereby effectively improving the environmental adaptability of the fertilizer and seed dispensing system.

[0023] 3. A flexible support cleaning mechanism is installed. By installing a swing frame and connecting bending frame, the adjusting side plate and cleaning arc plate are installed on both sides of the supporting arc wheel. After loosening the bolts, the tilt angle of the adjusting side plate is adjusted, so that the side of the cleaning arc plate fits more tightly with the outside of the supporting arc wheel. During the rotation of the supporting arc wheel, the cleaning arc plate scrapes off the sludge adhering to the outside of the supporting arc wheel, thereby ensuring the normal operation of the fertilizer and seed dispensing system and effectively improving the cleanliness of the bottom of the fertilizer and seed dispensing system. Attached Figure Description

[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0025] In the attached diagram:

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the pneumatic circulating seeding mechanism of this utility model;

[0028] Figure 3 This is a schematic diagram of the installation structure of the seeding turntable of this utility model;

[0029] Figure 4 This is a schematic diagram of the installation structure of the seeding tube of this utility model;

[0030] Figure 5 This is a schematic diagram of the installation structure of the extrusion cone block of this utility model;

[0031] Figure 6 This is a structural schematic diagram of the flexible connection support mechanism of this utility model;

[0032] Figure 7 This is a schematic diagram of the flexible support cleaning mechanism of this utility model;

[0033] The diagram shows: 1. Mounting bracket; 2. Top storage box;

[0034] 3. Pneumatic circulating seeding mechanism; 301. Seeding box; 302. Air supply jacking pipe; 303. Exhaust arc; 304. Slag discharge inclined port; 305. Seeding pipe; 306. Seeding inclined pipe; 307. Drive motor; 308. Seeding turntable; 309. Combing side roller; 310. Slag discharge bottom roller; 311. Seeding soft wheel; 312. Adjusting outer disc; 313. Adjusting gear; 314. Sliding arc plate; 315. Extrusion cone block;

[0035] 4. Flexible connection support mechanism; 401. Central connecting frame; 402. Connecting cross frame; 403. Mounting vertical frame; 404. Shock-absorbing spring; 405. Lifting swing frame; 406. Return spring; 407. Return inclined wheel;

[0036] 5. Flexible support cleaning mechanism; 501. Supporting arc-shaped wheel; 502. Installing swing frame; 503. Connecting curved frame; 504. Adjusting side plate; 505. Cleaning arc-shaped plate. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] Example: Figure 1-7 As shown, this utility model provides a technical solution, a centralized air-blowing fertilizer and seed dispensing system for a seeder, including a mounting bracket 1, with a material storage top box 2 fixedly installed on the top of the mounting bracket 1;

[0039] The bottom of the top storage box 2 is equipped with a pneumatic circulating seeding mechanism 3;

[0040] The pneumatic circulating seeding mechanism 3 includes a seeding box 301, an air supply top pipe 302, an exhaust arc 303, a slag discharge inclined 304, a seeding pipe 305, a seeding inclined pipe 306, a drive motor 307, a seeding turntable 308, a combing side roller 309, a slag discharge bottom roller 310, a seeding soft wheel 311, an adjusting outer disc 312, an adjusting gear 313, a sliding arc plate 314, and an extrusion cone block 315;

[0041] A seeding box 301 is bolted to the bottom of the storage top box 2. An air supply pipe 302 is fixedly installed on the top of one side of the seeding box 301. An exhaust arc 303 is provided in the middle of the other side of the seeding box 301. A slag discharge inclined port 304 is provided on one side of the seeding box 301 at the position corresponding to the bottom of the air supply pipe 302. A seeding pipe 305 is embedded in one side of the seeding box 301 at the position corresponding to the slag discharge inclined port 304. A seeding inclined pipe 306 is fixedly connected to the bottom end of the seeding pipe 305.

[0042] A drive motor 307 is fixedly installed in the middle of one side of the seeding box 301. The drive motor 307 is powered by an external power source. The output shaft of the drive motor 307 is fixedly engaged with a seeding turntable 308 at the position inside the seeding box 301. A combing side roller 309 is rotatably installed on the inner wall of the seeding box 301 at the position corresponding to the back of the seeding turntable 308. A slag discharge bottom roller 310 is rotatably connected to the inner wall of the seeding box 301 at the bottom position corresponding to the back of the seeding turntable 308 via a swing frame. A seeding soft wheel 311 is rotatably installed on the inner wall of the seeding box 301 at the position corresponding to the top of the seeding tube 305.

[0043] An adjusting outer disc 312 is rotatably mounted on the top side of the sowing box 301. An adjusting gear 313 is fixedly connected to one end of the adjusting outer disc 312 at a position inside the sowing box 301. A sliding arc-shaped plate 314 is movably installed on the inner wall of the sowing box 301 at a position corresponding to the top of the adjusting gear 313. A pressing cone 315 is fixedly connected to one side of the sliding arc-shaped plate 314 via a connecting plate. A seed dispensing hole is provided on the side edge of the sowing turntable 308. The side cones of the combing side roller 309 and the slag discharge bottom roller 310 are correspondingly fitted with the seed dispensing hole. The outer side of the sowing soft wheel 311 is tightly fitted with the back of the sowing turntable 308. The side of the pressing cone 315 is flush with the edge of the seed dispensing hole. Seeds to be sown are introduced into the sowing box 301 through the discharge port at the bottom of the storage top box 2. An external air supply device introduces a continuous high-speed airflow into the air supply jacking pipe 302, and discharges the high-speed airflow from the seeding box 301 through the exhaust arc port 303. The residue inside the seeding box 301 is discharged through the slag discharge inclined port 304. The high-speed airflow causes the seeds to rotate synchronously against the seeding turntable 308. The combing side roller 309 pushes out and separates the excess seeds adsorbed on the side of the seeding turntable 308. The seeds are then sown through the seeding inclined pipe 306. The slag discharge bottom roller 310 separates the remaining broken seeds on the side of the seeding turntable 308, so that the seeding turntable 308 can drive new seeds for sowing. This effectively prevents the mechanical structure from squeezing and damaging the seeds during the sowing process, improves the integrity of the seeds during the sowing process, and improves the sowing effect of the fertilizer and seed dispensing system.

[0044] The bottom of the mounting bracket 1 is provided with a flexible connection support mechanism 4;

[0045] The flexible connection support mechanism 4 includes a central connecting frame 401, a connecting horizontal frame 402, a mounting vertical frame 403, a shock-absorbing spring 404, a lifting swing frame 405, a return spring 406, and a return inclined wheel 407.

[0046] A central connecting frame 401 is fixedly connected to the bottom of the mounting bracket 1. A connecting crossbeam 402 is rotatably connected to the top and bottom of one end of the central connecting frame 401. A mounting vertical frame 403 is rotatably connected to the ends of both connecting crossbeams 402. A shock-absorbing spring 404 is engaged between the connecting crossbeams 402 and the mounting vertical frame 403. A lifting swing frame 405 is rotatably mounted at the bottom of the other end of the central connecting frame 401. A return spring 406 is engaged between the outer side of the lifting swing frame 405 and the central connecting frame 401. Return inclined wheels 407 are symmetrically rotatably mounted on both sides of the bottom of the lifting swing frame 405. The end of the mounting vertical frame 403 is connected to the external connecting beam. The central connecting frame 401 and the connecting crossbeams 402 are... The system performs vertical translation, and the mounting bracket 1 and its connected components are installed and connected through the central connecting frame 401. The seed dispensing system is connected to the tail of the corresponding agricultural transport equipment through the connecting horizontal frame 402 and the mounting vertical frame 403. The connecting horizontal frame 402 and the mounting vertical frame 403 are flexibly limited by the shock-absorbing spring 404, so that the central connecting frame 401 can swing freely during the movement. Then, the lifting swing frame 405 is flexibly limited by the return spring 406, so that the return inclined wheel 407 can rise and fall with the lifting swing frame 405 during the movement, ensuring that the fertilizer and seed dispensing system can remain stable during the movement, thereby effectively improving the environmental adaptability of the fertilizer and seed dispensing system.

[0047] The bottom of the central connecting frame 401 is equipped with a flexible support cleaning mechanism 5;

[0048] The flexible support cleaning mechanism 5 includes a support arc-shaped wheel 501, a mounting frame 502, a connecting bend frame 503, an adjusting side plate 504, and a cleaning arc-shaped plate 505;

[0049] Both sides of the bottom surface of the central connecting frame 401 are rotatably mounted with supporting arc-shaped wheels 501. A mounting frame 502 is movably connected to the outer side of the supporting arc-shaped wheels 501 on both sides of the central connecting frame 401. A connecting bend frame 503 is bolted to the end of the mounting bend frame 502 corresponding to the side of the supporting arc-shaped wheels 501. An adjusting side plate 504 is bolted to the end of the connecting bend frame 503 corresponding to the middle of the side of the supporting arc-shaped wheels 501. A cleaning arc-shaped plate 505 is fixedly connected to the end of the adjusting side plate 504. The middle of the side of the adjusting side plate 504 is bolted to the middle of the side of the supporting arc-shaped wheels 501. The side of the cleaning arc-shaped plate 505 is connected to the supporting arc-shaped wheels 501. The outer sides of the wheel 501 slide tightly together, and the cleaning arc plate 505 can be elastically deformed. By installing the swing frame 502 in conjunction with the connecting bending frame 503, the adjusting side plate 504 and the cleaning arc plate 505 are installed on both sides of the supporting arc wheel 501. After loosening the bolts, the tilt angle of the adjusting side plate 504 is adjusted, thereby making the side of the cleaning arc plate 505 fit more tightly with the outer side of the supporting arc wheel 501. During the rotation of the supporting arc wheel 501, the cleaning arc plate 505 scrapes off the sludge adhering to the outer side of the supporting arc wheel 501, thereby ensuring the normal operation of the fertilizer and seed dispensing system and effectively improving the cleanliness of the bottom of the fertilizer and seed dispensing system.

[0050] The working principle and usage process of this utility model: In the actual application process, when the storage top box 2 is driven to move, the central connecting frame 401 is used to install and connect the mounting bracket 1 and its connected components. Then, the seed metering system is connected to the tail of the corresponding agricultural transportation equipment through the connecting horizontal frame 402 and the mounting vertical frame 403. The shock-absorbing spring 404 is used to flexibly limit the connecting horizontal frame 402 and the mounting vertical frame 403 so that the central connecting frame 401 can swing freely during the movement.

[0051] Then, the lifting frame 405 is flexibly limited by the return spring 406, so that the return inclined wheel 407 can rise and fall with the lifting frame 405 during the movement, ensuring that the fertilizer and seeding system can remain stable during the movement, thereby effectively improving the environmental adaptability of the fertilizer and seeding system.

[0052] When sowing seeds using the seeding system, the seeds to be sown are added to the storage top box 2 for storage. Then, the seeds to be sown are introduced into the sowing round box 301 through the discharge port at the bottom of the storage top box 2. Then, a continuous high-speed airflow is introduced into the air supply top pipe 302 through the external air supply equipment, and the high-speed airflow inside the sowing round box 301 is discharged through the exhaust arc port 303. After sowing, the residue inside the sowing round box 301 can be discharged through the slag discharge inclined port 304.

[0053] During the process of high-speed airflow passing through the inside of the sowing box 301, the sowing turntable 308 is driven to rotate by the drive motor 307. Then, the high-speed airflow makes the seeds stick to the sowing turntable 308 and rotate synchronously. The combing side roller 309 pushes out and separates the excess seeds adsorbed on the side of the sowing turntable 308. When the sowing turntable 308 drives the seeds to rotate to the side of the sowing soft wheel 311, the seeds on the side of the sowing turntable 308 fall into the sowing tube 305 and are sown through the sowing inclined tube 306. Then, during the continued rotation of the sowing turntable 308, the slag discharge bottom roller 310 separates the remaining broken seeds on the side of the sowing turntable 308, so that the sowing turntable 308 can drive new seeds for sowing again. This effectively prevents the mechanical structure from squeezing and damaging the seeds during the sowing process, improves the integrity of the seeds during the sowing process, and improves the sowing effect of the fertilizer and seed dispensing system.

[0054] When the bottom of the fertilizer and seed dispensing system needs to be cleaned, the support arc wheel 501 can provide auxiliary support to the bottom of the mounting bracket 1. Then, the adjusting side plate 504 and the cleaning arc plate 505 are installed on both sides of the support arc wheel 501 by the mounting bracket 502 and the connecting bending bracket 503. After loosening the bolts, the tilt angle of the adjusting side plate 504 is adjusted, so that the side of the cleaning arc plate 505 fits more tightly with the outside of the support arc wheel 501. During the rotation of the support arc wheel 501, the cleaning arc plate 505 scrapes off the sludge adhering to the outside of the support arc wheel 501, thereby ensuring the normal operation of the fertilizer and seed dispensing system and effectively improving the cleanliness of the bottom of the fertilizer and seed dispensing system.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A centralized air-blowing fertilizer and seed dispensing system for a seeder, comprising a mounting bracket (1), characterized in that: The top of the mounting bracket (1) is fixedly mounted with a material storage top box (2); The bottom of the top storage box (2) is equipped with a pneumatic circulating seeding mechanism (3); The pneumatic circulating seeding mechanism (3) includes a seeding box (301), an air supply top pipe (302), an exhaust arc port (303), a slag discharge inclined port (304), a seeding pipe (305), a seeding inclined pipe (306), a drive motor (307), a seeding turntable (308), a combing side roller (309), a slag discharge bottom roller (310), a seeding soft wheel (311), an adjusting outer disc (312), an adjusting gear (313), a sliding arc plate (314), and an extrusion cone (315). The bottom of the storage top box (2) is bolted with a seeding box (301). An air supply pipe (302) is fixedly installed on the top of one side of the seeding box (301). An exhaust arc port (303) is provided in the middle of the other side of the seeding box (301). A slag discharge inclined port (304) is provided on one side of the seeding box (301) at the bottom position corresponding to the air supply pipe (302). A seeding pipe (305) is embedded in one side of the seeding box (301) at the position corresponding to the slag discharge inclined port (304). A seeding inclined pipe (306) is fixedly connected to the bottom end of the seeding pipe (305). A drive motor (307) is fixedly installed in the middle of one side of the seeding box (301). The drive motor (307) is powered by an external power source. A seeding turntable (308) is fixedly connected to the output shaft of the drive motor (307) at a position inside the seeding box (301). A combing side roller (309) is rotatably installed on the inner wall of the seeding box (301) at a position corresponding to the back of the seeding turntable (308). A slag discharge bottom roller (310) is rotatably connected to the inner wall of the seeding box (301) at a position corresponding to the bottom of the back of the seeding turntable (308) via a swing frame. A seeding soft wheel (311) is rotatably installed on the inner wall of the seeding box (301) at a position corresponding to the top of the seeding tube (305). An adjusting outer plate (312) is rotatably installed on the top of one side of the seeding box (301). An adjusting gear (313) is fixedly connected to one end of the adjusting outer plate (312) at a position inside the seeding box (301). A sliding arc plate (314) is movably arranged on the inner wall of the seeding box (301) at a position corresponding to the top of the adjusting gear (313). A pressing cone block (315) is fixedly connected to one side of the sliding arc plate (314) through a connecting plate.

2. The centralized air-blowing fertilizer and seed dispensing system for a seeder according to claim 1, characterized in that, The side edge of the sowing turntable (308) is provided with a seed dispensing through hole. The side cones of the combing side roller (309) and the slag discharge bottom roller (310) correspond to and fit with the seed dispensing through hole. The outer side of the sowing soft wheel (311) is closely fitted with the back of the sowing turntable (308). The side of the extrusion cone (315) is flush with the edge of the seed dispensing through hole.

3. The centralized air-blowing fertilizer and seed dispensing system for a seeder according to claim 1, characterized in that, The mounting bracket (1) is provided with a flexible connection support mechanism (4) at its bottom; The flexible connection support mechanism (4) includes a central connecting frame (401), a connecting horizontal frame (402), a mounting vertical frame (403), a shock-absorbing spring (404), a lifting swing frame (405), a return spring (406), and a return inclined wheel (407); The mounting bracket (1) is fixedly connected to a central connecting frame (401) at its bottom end. A connecting crossbeam (402) is rotatably connected to the top and bottom of one end of the central connecting frame (401). A mounting vertical frame (403) is rotatably connected to the ends of the two connecting crossbeams (402). A shock-absorbing spring (404) is engaged between the connecting crossbeam (402) and the mounting vertical frame (403). A lifting swing frame (405) is rotatably installed at the bottom of the other end of the central connecting frame (401). A return spring (406) is engaged between the outer side of the lifting swing frame (405) and the central connecting frame (401). Returning inclined wheels (407) are symmetrically rotatably installed on both sides of the bottom of the lifting swing frame (405).

4. The centralized air-blowing fertilizer and seed dispensing system for a seeder according to claim 3, characterized in that, The end of the mounting frame (403) is connected to the external connecting beam, and the central connecting frame (401) and the connecting frame (402) can be vertically translated to each other.

5. A centralized air-blowing fertilizer and seed dispensing system for a seeder according to claim 3, characterized in that, The bottom of the central connecting frame (401) is provided with a flexible support cleaning mechanism (5); The flexible support cleaning mechanism (5) includes a support arc wheel (501), a mounting frame (502), a connecting bend frame (503), an adjusting side plate (504), and a cleaning arc plate (505); Both sides of the bottom surface of the central connecting frame (401) are rotatably mounted with supporting arc-shaped wheels (501). On both sides of the central connecting frame (401), corresponding to the outer positions of the supporting arc-shaped wheels (501), mounting frames (502) are movably connected. At the end of the mounting frame (502), corresponding to the side position of the supporting arc-shaped wheels (501), a connecting bend frame (503) is bolted to it. At the end of the connecting bend frame (503), corresponding to the middle position of the side position of the supporting arc-shaped wheels (501), an adjusting side plate (504) is bolted to it. At the end of the adjusting side plate (504), a cleaning arc-shaped plate (505) is fixedly connected.

6. A centralized air-blowing fertilizer and seed dispensing system for a seeder according to claim 5, characterized in that, The middle part of the side of the adjusting side plate (504) is connected to the middle part of the side of the supporting arc wheel (501) by bolts. The side of the cleaning arc plate (505) and the outer side of the supporting arc wheel (501) are tightly slidably fitted together, and the cleaning arc plate (505) can be elastically deformed.

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