Air-suction type precision seeder

Abstract

The utility model discloses a kind of air suction type precision seeding machines, including frame, hand supporting mechanism, control system, front wheel mechanism, rear wheel mechanism, seeding mechanism, storage battery, motor, fan mechanism, gearbox, intermediate shaft, the frame is connected with hand supporting mechanism;The control system is connected with frame;The control system is connected with motor;The control system is connected with storage battery, and the motor is connected with storage battery;The control system is connected with fan mechanism, and the fan mechanism is connected with storage battery;The motor is drivingly connected with front wheel mechanism;The front wheel mechanism is drivingly connected with rear wheel mechanism;The rear wheel mechanism is drivingly connected with gearbox;The gearbox is drivingly connected with intermediate shaft;The intermediate shaft is drivingly connected with seeding mechanism;The utility model aims at by the power needed transmission is all sent by motor, and all equipment is with storage battery as power source, make it completely eliminate exhaust gas and fuel leakage risk possibly by internal combustion engine operation.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a pneumatic precision seeder. Background Technology

[0002] In modern agriculture, especially in facility agriculture (such as greenhouses), precision seeding is a key step in achieving high-yield, high-efficiency, and standardized crop production. Air-suction precision seeders have become the mainstream equipment for facility agriculture seeding operations due to their advantages such as high seeding accuracy, wide adaptability to seed shape and size, and low seed damage rate.

[0003] Traditional large-scale pneumatic seeders for field use internal combustion engines (such as diesel or gasoline engines) as power sources to drive the fans. This method has significant drawbacks: the operation of internal combustion engines inevitably produces exhaust gases (such as carbon monoxide, nitrogen oxides, hydrocarbons, and particulate matter) and significant noise pollution. In highly intensive, relatively enclosed greenhouses, these pollutants directly endanger the health of workers who work inside for extended periods (e.g., causing respiratory problems) and accumulate continuously in the confined space, creating a high-concentration environment of toxic gases. Simultaneously, harmful components in the exhaust gases and potential fuel leaks can pollute or stress sensitive crops grown inside the greenhouse, affecting crop growth quality and food safety. Furthermore, internal combustion engine-driven equipment is relatively bulky, generates significant vibration and noise, and lacks operational flexibility in the limited space of greenhouses, posing certain safety risks to operators (e.g., burns from high-temperature components, and the risk of fuel fires). Therefore, developing a new type of pneumatic precision seeder has become an urgent problem for those skilled in the art. Utility Model Content

[0004] This utility model aims to provide a pneumatic precision seeder, in which all power for transmission is generated by an electric motor, and all equipment is powered by a battery. This completely eliminates the risk of exhaust gas and fuel leakage that may occur from internal combustion engines, fundamentally preventing the accumulation of toxic and harmful substances in enclosed greenhouses, and effectively protecting the respiratory health and personal safety of personnel working in greenhouses for extended periods. To achieve the above objectives, the specific technical solution of this pneumatic precision seeder is as follows: A pneumatic precision seeder includes a frame, a handlebar mechanism, a control system, a front wheel mechanism, a rear wheel mechanism, a seeding mechanism, a battery, a motor, a fan mechanism, a gearbox, and an intermediate shaft. The frame is connected to the handlebar mechanism; the control system is connected to the frame; the control system is connected to the motor; the control system is connected to the battery; the motor is connected to the battery; the control system is connected to the fan mechanism; the fan mechanism is connected to the battery; the motor is driven by the front wheel mechanism; the front wheel mechanism is driven by the rear wheel mechanism; the rear wheel mechanism is driven by the gearbox; the gearbox is driven by the intermediate shaft; and the intermediate shaft is driven by the seeding mechanism.

[0005] Compared with existing technologies, the beneficial effects of this invention are as follows: All power required for transmission is generated by an electric motor, and all equipment uses batteries as a power source. This completely eliminates the risk of exhaust gases (such as carbon monoxide and nitrogen oxides) and fuel leaks that may be generated by internal combustion engines. It fundamentally prevents the accumulation of toxic and harmful substances in the enclosed greenhouse, effectively protecting the respiratory health and personal safety of workers who work in the greenhouse for extended periods. Simultaneously, it avoids pollution and growth stress on sensitive crops caused by exhaust gases, thus improving crop quality and food safety. The noise level of the electric motor is far lower than that of an internal combustion engine, creating a quieter and more comfortable working environment.

[0006] Furthermore, it also includes a height adjustment mechanism, which is connected to the vehicle frame; the height adjustment mechanism includes a fixed column, an adjusting column, and a connecting plate; the fixed column and the adjusting column cooperate with each other; the adjusting column is connected to the connecting plate; and the connecting plate is connected to the sowing mechanism.

[0007] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The equipment also includes a height adjustment mechanism, which allows for adjustment of the height of the sowing mechanism, thereby adjusting the sowing distance. The height adjustment mechanism is connected to the frame, allowing it to be fixed on the frame, thus enabling height adjustment of the sowing mechanism. The height adjustment mechanism includes a fixed column, an adjusting column, and a connecting plate. The fixed column is connected to the frame, and the adjusting column can move up and down inside the fixed column. Preferably, the fixed column and the adjusting column are threaded together. The connecting plate is used to drive the sowing mechanism to move up and down. The fixed column and the adjusting column cooperate; the adjusting column is connected to the connecting plate; the connecting plate is connected to the sowing mechanism, allowing the fixed column and the adjusting column to cooperate. When the fixed column is fixed to the frame, the adjusting column can move up and down inside the fixed column, simultaneously driving the connecting plate connected to it to move up and down, thus driving the sowing mechanism to move up and down, completing the height adjustment of the sowing mechanism and also achieving the adjustment of the sowing spacing.

[0008] Furthermore, it also includes a recycling mechanism, which comprises a recycling bin, an air intake pipe, a seed pipe, a discharge pipe, and a fixing pipe; the recycling bin is connected to a handrail mechanism; the recycling bin is connected to the air intake pipe; the recycling bin is connected to the seed pipe; the recycling bin is connected to the discharge pipe; the air intake pipe is connected to a fan mechanism; the fixing pipe is connected to a sowing mechanism; and the seed pipe is connected to the fixing pipe.

[0009] The beneficial effects of adopting the above-mentioned further technical solution are as follows: This equipment also includes a recycling mechanism, which can collect seeds missed during the sowing process. The recycling mechanism includes a recycling bin, a suction pipe, a seed tube, a discharge pipe, and a fixing pipe. The recycling bin stores the collected seeds, the suction pipe, in conjunction with the seed tube, draws unsown seeds into the recycling bin, and the discharge pipe discharges the seeds. The seeds can then be reinserted by the operator for re-sowing. The fixing pipe is vertically connected to the frame, and its horizontal section is connected to the sowing mechanism for transporting missed seeds. The recycling bin is connected to a handrail mechanism, allowing the recycling mechanism to connect with the handrail. The system is connected to a handrail mechanism and fixed to it; a collection bin is connected to a suction pipe; the collection bin is connected to a seed tube, so that the suction pipe, through the suction force of the fan mechanism, generates suction force on the collection bin and the seed tube, allowing the seed tube to use this suction force to suck unsown seeds into the collection bin; the collection bin is connected to a discharge pipe, so that the seeds in the collection bin can be discharged through the discharge pipe for reuse; the suction pipe is connected to a fan mechanism, so that the fan mechanism can transmit suction force to the suction pipe, thereby driving the collection bin, seed tube, and fixed pipe to suck air; the fixed pipe is connected to a sowing mechanism; the seed tube is connected to the fixed pipe, so that the fixed pipe enters the sowing mechanism, and the seeds are sucked into the fixed pipe by suction force, then transferred from the fixed pipe to the seed tube, and finally transferred to the collection bin.

[0010] Furthermore, the motor is provided with a first sprocket; the front wheel mechanism is provided with a first drive shaft, and the first drive shaft is provided with a second sprocket; the first sprocket and the second sprocket are connected by a first chain drive.

[0011] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the motor is equipped with a first sprocket, which enables the motor to transmit power outward through the first sprocket; the front wheel mechanism is equipped with a first drive shaft, and the first drive shaft is equipped with a second sprocket; the first sprocket and the second sprocket are connected by a first chain drive, so that the front wheel mechanism is connected by a second sprocket and a first sprocket drive, and the power on the motor is transmitted to the front wheel mechanism. The first sprocket and the second sprocket are connected by a first chain drive, which can ensure the stability of the transmission.

[0012] Furthermore, the front wheel mechanism is provided with a first drive shaft, and the first drive shaft is provided with a third sprocket; the rear wheel mechanism is provided with a second drive shaft, and the second drive shaft is provided with a fourth sprocket; the third sprocket and the fourth sprocket are connected by a second chain drive.

[0013] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The front wheel mechanism is provided with a first drive shaft, and the first drive shaft is provided with a third sprocket, so that the first drive shaft of the front wheel mechanism is also provided with a third sprocket. The power of the motor is transmitted to the first drive shaft, and the first drive shaft drives the third sprocket to rotate. The rear wheel mechanism is provided with a second drive shaft, and the second drive shaft is provided with a fourth sprocket. The power of the rear wheel mechanism is driven by the fourth sprocket on the second drive shaft, which then transmits the power to the rear wheel mechanism. The third sprocket and the fourth sprocket are connected by a second chain drive, so that the power of the front wheel mechanism is transmitted to the rear wheel mechanism through the transmission connection between the fourth sprocket and the third sprocket.

[0014] Furthermore, the rear wheel mechanism is provided with a second drive shaft, and the second drive shaft is provided with a fifth sprocket; the gearbox is provided with a third drive shaft, and the third drive shaft is provided with a sixth sprocket; the fifth sprocket and the sixth sprocket are connected by a third chain drive.

[0015] The beneficial effects of adopting the above-mentioned further technical solution are as follows: a second drive shaft is provided through the rear wheel mechanism, and a fifth sprocket is provided on the second drive shaft, so that the power on the second drive shaft can be transmitted to the fifth sprocket; a third drive shaft is provided through the gearbox, and a sixth sprocket is provided on the third drive shaft; the fifth sprocket and the sixth sprocket are connected by a third chain drive, so that the sixth sprocket on the third drive shaft of the gearbox can be connected to the fifth sprocket by the third chain drive, thereby transmitting the power on the rear wheel mechanism to the gearbox. The power transmitted to the gearbox will be changed through the gearbox's transmission mechanism, and then transmitted out through the fourth drive shaft.

[0016] Furthermore, the gearbox is provided with a fourth drive shaft, the fourth drive shaft is provided with a seventh sprocket; the intermediate shaft is provided with an eighth sprocket; the seventh sprocket and the eighth sprocket are connected by a fourth chain drive.

[0017] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the gearbox is equipped with a fourth drive shaft, and the fourth drive shaft is equipped with a seventh sprocket, so that after the gearbox changes the speed of the power input into the gearbox, the changed power is transmitted to the fourth drive shaft, and then the power is transmitted out by the seventh sprocket on the fourth drive shaft; an eighth sprocket is provided through an intermediate shaft; the seventh sprocket and the eighth sprocket are connected by a fourth chain drive, so that the seventh sprocket in the gearbox and the eighth sprocket on the intermediate shaft are connected by a fourth chain drive, thereby transmitting the power in the gearbox to the intermediate shaft.

[0018] Furthermore, the intermediate shaft is provided with a ninth sprocket; the seeding mechanism is provided with a fifth drive shaft, and the fifth drive shaft is provided with a tenth sprocket; the ninth sprocket and the tenth sprocket are connected by a fifth chain drive.

[0019] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the intermediate shaft is provided with a ninth sprocket, so that the power on the intermediate shaft can be transmitted to the ninth sprocket and then transmitted out through the ninth sprocket; the seeding mechanism is provided with a fifth transmission shaft, and the fifth transmission shaft is provided with a tenth sprocket; the ninth sprocket and the tenth sprocket are connected by a fifth chain drive, so that the tenth sprocket is provided on the fifth transmission shaft, and the tenth sprocket and the ninth sprocket are connected by a fifth chain drive, thereby realizing the transmission of power from the intermediate shaft to the seeding mechanism.

[0020] Furthermore, the control system is provided with a switching mechanism; the switching mechanism includes a first switching component and a second switching component.

[0021] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the control system is equipped with a switching mechanism, which allows the operator to control the equipment through the switching mechanism; the switching mechanism includes a first switching component and a second switching component, which allows the first switching component to be used for turning the motor on and off, and the second switching component to be used for turning the fan mechanism on and off.

[0022] Furthermore, the handrail mechanism includes a fixing component, a handrail, and a locking component; the fixing component is slidably connected to the handrail; the fixing component is provided with a locking hole; the locking component cooperates with the locking hole; the handrail mechanism is also provided with a power adjustment mechanism; the power adjustment mechanism is connected to the control system.

[0023] The beneficial effects of adopting the above-mentioned further technical solution are as follows: The handrail mechanism includes a fixing component, a handrail, and a locking component. The fixing component is fixedly connected to the frame, and the handrail is slidably connected to the fixing component and can be separated from the fixing component. The locking component is used to lock the handrail to prevent it from moving up and down. The slidable connection between the fixing component and the handrail allows the handrail to move up and down within the fixing component, thereby achieving adjustment of the handrail to different heights. The fixing component is provided with a locking hole. The locking component cooperates with the locking hole, so that the locking hole on the fixing component can cooperate with the locking component. Preferably, the locking component and the locking hole are threadedly connected, so that the locking component can squeeze the handrail, thereby achieving locking of the handrail position. The handrail mechanism is also provided with a power adjustment mechanism. The power adjustment mechanism is connected to the control system and can be used to control the operating speed of the motor, thereby adjusting the power required by the front wheel mechanism, the rear wheel mechanism, and the seeding mechanism. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the overall structure of this utility model; Figure 3 This is a top view of the overall structure of this utility model; Figure 4 This is a bottom view of the overall structure of this utility model; Figure 5 This is a schematic diagram of the transmission of the sowing mechanism of this utility model.

[0025] 1. Frame; 2. Handrail mechanism; 3. Control system; 4. Front wheel mechanism; 5. Rear wheel mechanism; 6. Seeding mechanism; 7. Battery; 8. Motor; 9. First chain; 10. Second chain; 11. Third chain; 12. Gearbox; 13. Intermediate shaft; 14. Fourth chain; 15. Fifth chain; 16. Fan mechanism; 17. Height adjustment mechanism; 18. Retraction mechanism; 201. Fixing component; 202. Handrail; 203. Locking component; 204. Locking hole; 205. Power adjustment mechanism; 311. First switch component; 312. Second switch component; 401. First drive shaft; 40 2. Second sprocket; 403. Third sprocket; 501. Second drive shaft; 502. Fourth sprocket; 503. Fifth sprocket; 601. Fifth drive shaft; 602. Tenth sprocket; 801. First sprocket; 1201. Sixth sprocket; 1202. Seventh sprocket; 1203. Third drive shaft; 1204. Fourth drive shaft; 1301. Eighth sprocket; 1302. Ninth sprocket; 1701. Fixed post; 1702. Adjusting post; 1703. Connecting plate; 1801. Recycling bin; 1802. Suction pipe; 1803. Seed tube; 1804. Discharge pipe; 1805. Fixed pipe. Detailed Implementation

[0026] To better understand the purpose, structure, and function of this utility model, a pneumatic precision seeder will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1 like Figure 1-5As shown, the pneumatic precision seeder of this utility model includes a frame 1, a handle 202 mechanism 2, a control system 3, a front wheel mechanism 4, a rear wheel mechanism 5, a seeding mechanism 6, a battery 7, a motor 8, a fan mechanism 16, a gearbox 12, and an intermediate shaft 13. The frame 1 is connected to the handle 202 mechanism 2; the control system 3 is connected to the frame 1; the control system 3 is connected to the motor 8; the control system 3 is connected to the battery 7; the motor 8 is connected to the battery 7; the control system 3 is connected to the fan mechanism 16; the fan mechanism 16 is connected to the battery 7; the motor 8 is driven by the front wheel mechanism 4; the front wheel mechanism 4 is driven by the rear wheel mechanism 5; the rear wheel mechanism 5 is driven by the gearbox 12; the gearbox 12 is driven by the intermediate shaft 13; and the intermediate shaft 13 is driven by the seeding mechanism 6. The power required for transmission in this invention is generated by the motor 8, and all equipment uses the battery 7 as its power source. This completely eliminates the risk of exhaust gases (such as carbon monoxide and nitrogen oxides) and fuel leaks that may be generated by the operation of an internal combustion engine. It fundamentally prevents the accumulation of toxic and harmful substances in the enclosed greenhouse, effectively protecting the respiratory health and personal safety of personnel working in the greenhouse for extended periods. Simultaneously, it avoids pollution and growth stress on sensitive crops caused by exhaust gases, thus improving crop quality and food safety. The operating noise of the motor 8 is far lower than that of an internal combustion engine, creating a quieter and more comfortable working environment.

[0028] The seeder in this embodiment also includes a height adjustment mechanism 17, which is connected to the frame 1. The height adjustment mechanism 17 includes a fixed column 1701, an adjusting column 1702, and a connecting plate 1703. The fixed column 1701 and the adjusting column 1702 cooperate with each other. The adjusting column 1702 is connected to the connecting plate 1703. The connecting plate 1703 is connected to the sowing mechanism 6. This device also includes a height adjustment mechanism 17, which can adjust the height of the sowing mechanism 6, thereby adjusting the sowing distance. The height adjustment mechanism 17 is connected to the frame 1, allowing it to be fixed on the frame 1, and the frame 1 is used to adjust the height of the sowing mechanism 6. The height adjustment mechanism 17 includes a fixed column 1701, an adjusting column 1702, and a connecting plate 1703. The fixed column 1701 is connected to the frame 1, and the adjusting column 1702 can move up and down inside the fixed column 1701. Preferably, the fixed column 1701 and the adjusting column 1702 are threaded. In conjunction with the connecting plate 1703, the sowing mechanism 6 is moved up and down. The fixed column 1701 cooperates with the adjusting column 1702. The adjusting column 1702 is connected to the connecting plate 1703. The connecting plate 1703 is connected to the sowing mechanism 6, allowing the fixed column 1701 and adjusting column 1702 to cooperate. When the fixed column 1701 is fixed to the frame 1, the adjusting column 1702 can move up and down inside the fixed column 1701, simultaneously moving the connecting plate 1703 connected to it up and down, thus moving the sowing mechanism 6 up and down. This allows for adjustment of the height of the sowing mechanism 6 and the sowing spacing.

[0029] The seeder in this embodiment also includes a recycling mechanism 18, which includes a recycling bin 1801, an air intake pipe 1802, a seed pipe 1803, a discharge pipe 1804, and a fixing pipe 1805. The recycling bin 1801 is connected to the handle 202 mechanism 2; the recycling bin 1801 is connected to the air intake pipe 1802; the recycling bin 1801 is connected to the seed pipe 1803; the recycling bin 1801 is connected to the discharge pipe 1804; the air intake pipe 1802 is connected to the fan mechanism 16; the fixing pipe 1805 is connected to the seeding mechanism 6; and the seed pipe 1803 is connected to the fixing pipe 1805. This equipment also includes a recycling mechanism 18, which can collect seeds missed by the sowing mechanism 6 during the unsown phase. The recycling mechanism 18 includes a recycling bin 1801, a suction pipe 1802, a seed tube 1803, a discharge pipe 1804, and a fixing pipe 1805. The recycling mechanism 18 stores the collected seeds in the recycling bin 1801, and the suction pipe 1802, in conjunction with the seed tube 1803, sucks the unsown seeds into the recycling bin 1801. Seeds can be discharged through the discharge pipe 1804 and re-inserted by the operator for re-sowing. The vertical section of the fixing pipe 1805 is fixedly connected to the frame 1, and the horizontal section of the fixing pipe 1805 is connected to the sowing mechanism 6 to transport any seeds missed during the sowing process. The recycling bin 1801 is connected to the handrail 202 mechanism 2, allowing the recycling mechanism 18 to be fixed to the handrail 202 mechanism 2. The recycling bin 1804... 1. Connected to the suction pipe 1802; the recycling bin 1801 is connected to the seed tube 1803, so that the suction pipe 1802 generates suction on the recycling bin 1801 and the seed tube 1803 through the suction force of the fan mechanism 16, so that the seed tube 1803 can use this suction force to suck the unsown seeds into the recycling bin 1801; the recycling bin 1801 is connected to the discharge pipe 1804, so that the seeds in the recycling bin 1801 can be discharged through the discharge pipe 1804 for reuse; the suction pipe 1802 is connected to the fan mechanism 16. The connection 6 allows the fan mechanism 16 to transmit suction to the suction pipe 1802, which in turn drives the recycling bin 1801, seed pipe 1803, and fixed pipe 1805 to perform suction. The fixed pipe 1805 is connected to the sowing mechanism 6. The seed pipe 1803 is connected to the fixed pipe 1805, allowing the fixed pipe 1805 to enter the sowing mechanism 6. The suction draws the seeds into the fixed pipe 1805, which then transfers them to the seed pipe 1803 and finally to the recycling bin 1801.

[0030] In this embodiment, the motor 8 is equipped with a first sprocket 801; the front wheel mechanism 4 is equipped with a first drive shaft 401, and the first drive shaft 401 is equipped with a second sprocket 402; the first sprocket 801 and the second sprocket 402 are connected by a first chain 9. The motor 8, equipped with the first sprocket 801, transmits power outward through the first sprocket 801; the front wheel mechanism 4, equipped with the first drive shaft 401, and the first drive shaft 401, is equipped with a second sprocket 402; the first sprocket 801 and the second sprocket 402 are connected by a first chain 9, so that the front wheel mechanism 4 is connected by a second sprocket 402 and a first sprocket 801, thus transmitting power from the motor 8 to the front wheel mechanism 4. The connection between the first sprocket 801 and the second sprocket 402 via the first chain 9 ensures the stability of the transmission.

[0031] In this embodiment, the front wheel mechanism 4 is provided with a first drive shaft 401, and the first drive shaft 401 is provided with a third sprocket 403; the rear wheel mechanism 5 is provided with a second drive shaft 501, and the second drive shaft 501 is provided with a fourth sprocket 502; the third sprocket 403 and the fourth sprocket 502 are connected by a second chain 10. The front wheel mechanism 4 is equipped with a first drive shaft 401, and the first drive shaft 401 is equipped with a third sprocket 403. The third sprocket 403 is also mounted on the first drive shaft 401 of the front wheel mechanism 4. The power of the motor 8 is transmitted to the first drive shaft 401, and the first drive shaft 401 drives the third sprocket 403 to rotate. The rear wheel mechanism 5 is equipped with a second drive shaft 501, and the second drive shaft 501 is equipped with a fourth sprocket 502. The power of the rear wheel mechanism 5 is transmitted from the fourth sprocket 502 on the second drive shaft 501 to the second drive shaft 501, and the second drive shaft 501 then transmits the power to the rear wheel mechanism 5. The third sprocket 403 and the fourth sprocket 502 are connected by a second chain 10, so that the power of the front wheel mechanism 4 is transmitted to the rear wheel mechanism 5 through the connection between the fourth sprocket 502 and the third sprocket 403.

[0032] In this embodiment, the rear wheel mechanism 5 is provided with a second drive shaft 501, and the second drive shaft 501 is provided with a fifth sprocket 503; the gearbox 12 is provided with a third drive shaft 1203, and the third drive shaft 1203 is provided with a sixth sprocket 1201; the fifth sprocket 503 and the sixth sprocket 1201 are connected by a third chain 11. The rear wheel mechanism 5 is equipped with a second drive shaft 501, which has a fifth sprocket 503, allowing power to be transmitted from the second drive shaft 501 to the fifth sprocket 503. The gearbox 12 is equipped with a third drive shaft 1203, which has a sixth sprocket 1201. The fifth sprocket 503 and the sixth sprocket 1201 are connected by a third chain 11, allowing the sixth sprocket 1201 on the third drive shaft 12 of the gearbox 12 to be connected to the fifth sprocket 503 via the third chain 11. This transmits power from the rear wheel mechanism 5 to the gearbox 12, where the power is then changed through a gear shift mechanism before being transmitted out through the fourth drive shaft 1204.

[0033] In this embodiment, the gearbox 12 is provided with a fourth drive shaft 1204, the fourth drive shaft 1204 is provided with a seventh sprocket 1202; the intermediate shaft 13 is provided with an eighth sprocket 1301; the seventh sprocket 1202 and the eighth sprocket 1301 are connected by a fourth chain 14. The gearbox 12 is equipped with a fourth drive shaft 1204, which has a seventh sprocket 1202. This allows the gearbox 12 to change the speed of the power input into the gearbox 12 and then transmit the changed power to the fourth drive shaft 1204, where the seventh sprocket 1202 will then transmit the power outward. An eighth sprocket 1301 is provided through an intermediate shaft 13. The seventh sprocket 1202 and the eighth sprocket 1301 are connected by a fourth chain 14, thereby transmitting the power from the gearbox 12 to the intermediate shaft 13.

[0034] In this embodiment, the intermediate shaft 13 is equipped with a ninth sprocket 1302; the sowing mechanism 6 is equipped with a fifth drive shaft 601, and the fifth drive shaft 601 is equipped with a tenth sprocket 602; the ninth sprocket 1302 and the tenth sprocket 602 are connected by a fifth chain 15. The ninth sprocket 1302 on the intermediate shaft 13 allows power on the intermediate shaft 13 to be transmitted to the ninth sprocket 1302 and then transmitted outwards. The fifth drive shaft 601 on the sowing mechanism 6 is equipped with a tenth sprocket 602; the ninth sprocket 1302 and the tenth sprocket 602 are connected by a fifth chain 15, thus enabling the transmission of power from the intermediate shaft 13 to the sowing mechanism 6.

[0035] The control system 3 in this embodiment is equipped with a switching mechanism; the switching mechanism includes a first switching component 311 and a second switching component 312. The switching mechanism in the control system 3 allows the operator to control the equipment; the first switching component 311 is used to turn the motor 8 on and off, and the second switching component 312 is used to turn the fan mechanism 16 on and off.

[0036] The handrail 202 mechanism 2 in this embodiment includes a fixing member 201, a handrail 202, and a locking component 203; the fixing member 201 is slidably connected to the handrail 202; the fixing member 201 is provided with a locking hole 204; the locking component 203 cooperates with the locking hole 204; the handrail 202 mechanism 2 is also provided with a power adjustment mechanism 205; the power adjustment mechanism 205 is connected to the control system 3. The handrail mechanism 202 includes a fixing member 201, a handrail 202, and a locking component 203. The fixing member 201 is fixedly connected to the frame 1, and the handrail 202 is slidably connected to the fixing member 201, allowing it to be separated. The locking component 203 secures the handrail 202, preventing it from moving up and down. The slidable connection between the fixing member 201 and the handrail 202 allows the handrail 202 to move up and down within the fixing member 201, thus adjusting its height. The fixing member 201 has a locking hole 204. The locking component 203 engages with the locking hole 204, allowing the locking hole 204 on the fixing member 201 to engage with the locking component 203. Preferably, the locking component 203 and the locking hole 204 are threaded together. The locking component 203 can compress the handrail 202, thereby locking the position of the handrail 202. The handrail 202 mechanism 2 is also equipped with a power adjustment mechanism 205. The power adjustment mechanism 205 is connected to the control system 3 and can be used to control the operating speed of the motor 8, thereby adjusting the power required by the front wheel mechanism 4, the rear wheel mechanism 5, and the seeding mechanism 6. Preferably, one end of the power adjustment mechanism 205 is equipped with an automatic cruise button. When the operator rotates the power adjustment mechanism 205 to increase the speed, the operator can click the button to realize the current speed automatic cruise. At this time, when the operator releases the power adjustment mechanism 205, the equipment will still automatically cruise at the current speed. When it is necessary to cancel the automatic cruise, the automatic cruise action can be canceled by clicking the automatic cruise button again.

[0037] The working principle and process of this embodiment: Working principle This pneumatic precision seeder uses a pure electric drive system, with battery 7 as the power source and motor 8 providing all the power required for the entire machine. Its working principle can be divided into two core parts: power transmission and negative pressure seeding. 1. Principle of power transmission The motor 8 serves as the core power source, and its rotational power is transmitted step-by-step through a sprocket and chain drive system. Specifically, the first sprocket 801 on the output shaft of the motor 8 drives the second sprocket 402 on the first drive shaft 401 of the front wheel mechanism 4 via the first chain 9, thus rotating the front wheel. The third sprocket 403 on the front wheel axle then drives the fourth sprocket 502 on the second drive shaft 501 of the rear wheel mechanism 5 via the second chain 10, providing power to the rear wheel. The fifth sprocket 503 on the rear wheel axle transmits power to the sixth sprocket 1201 on the input shaft (third drive shaft 1203) of the gearbox 12 via the third chain 11. After internal speed changes within the gearbox 12, the power is transmitted from the seventh sprocket 1202 on the output shaft (fourth drive shaft 1204) to the eighth sprocket 1301 on the intermediate shaft 13 via the fourth chain 14. Finally, the ninth sprocket 1302 on the intermediate shaft 13 drives the tenth sprocket 602 on the fifth transmission shaft 601 of the seeding mechanism 6 through the fifth chain 15, providing rotational power to the seed metering device.

[0038] 2. Working principle of sowing The sowing mechanism 6 employs pneumatic seed metering technology. The fan mechanism 16, driven by the battery 7, operates continuously, generating negative pressure (suction). This negative pressure is transmitted through pipes to the seed suction plate of the seed metering device. As the seed suction plate rotates, powered by the intermediate shaft 13, its suction holes adsorb individual seeds under the negative pressure. When the seed suction plate rotates to the seed unloading area, the negative pressure is cut off or released, and the seeds detach from the seed suction plate under gravity or the action of the seed scraper, falling into the seed furrow opened by the furrow opener, thus completing precision sowing.

[0039] 3. Working principle of auxiliary mechanism Height adjustment mechanism 17: By manually rotating the adjusting column 1702, the threaded engagement between the adjusting column 1702 and the fixed column 1701 causes the adjusting column 1702 to drive the connecting plate 1703 and the entire sowing mechanism 6 fixed thereon to rise and fall synchronously. The change in the height of the sowing mechanism 6 directly determines the soil penetration depth of the furrow opener, thus realizing stepless adjustment of the sowing depth.

[0040] Recycling Mechanism 18: The negative pressure generated by the fan acts not only on the seed metering device but also connects to the recycling bin 1801 through the suction pipe 1802. Seeds that are not absorbed and scatter during sowing are sucked into the recycling bin 1801 under negative pressure through the fixed pipe 1805 and seed pipe 1803 installed below the sowing mechanism 6, thus avoiding seed waste and re-sowing. The recycled seeds can be manually collected and reused later through the discharge pipe 1804.

[0041] Control system 3: As the control center of the whole machine, it receives commands from the power adjustment mechanism 205 (such as a speed control throttle) on the handle 202 mechanism 2, adjusts the output speed of the motor 8, and thus controls the traveling speed and sowing frequency. At the same time, the first switch component 311 and the second switch component 312 independently control the start and stop of the motor 8 and the fan mechanism 16 respectively.

[0042] Running process The complete operation process of this seeder is as follows: 1. Preparation before operation: The operator first manually rotates the adjusting column 1702 of the height adjustment mechanism 17 according to the agronomically required sowing depth to adjust the sowing mechanism 6 to the appropriate height position and lock it. Pour the seeds into the seed box of the sowing mechanism 6, and ensure that the recycling bin 1801 of the recycling mechanism 18 is empty and that all pipe connections are unobstructed. Check that the battery 7 has sufficient power.

[0043] 2. Starting the equipment: The operator stands behind the handrail 202 mechanism 2 and first starts the fan mechanism 16 via the second switch component 312 on the control system 3. After the fan runs smoothly and the negative pressure is established, the operator starts the motor 8 via the first switch component 311. After the motor 8 starts, the power is transmitted through the transmission system to make the front and rear wheels rotate slowly, and the seeder begins to move at a low speed.

[0044] 3. Speed ​​Adjustment and Movement: After the equipment is started, the operator gradually increases the output power of the motor 8 through the power adjustment mechanism 205 (such as a speed control throttle) on the handle 202 mechanism 2, so that the seeder accelerates to the predetermined working speed and moves forward at a constant speed. The movement power is entirely provided by the motor 8, and the whole process is zero-emission and low-noise.

[0045] 4. Sowing Execution: During travel, the power from the rear wheel mechanism 5 is transmitted to the seed dispensing shaft of the sowing mechanism 6 via the gearbox 12 and intermediate shaft 13, driving the seed suction disc to rotate. Simultaneously, the negative pressure generated by the fan continuously acts on the seed suction disc. The rotating seed suction disc uses this negative pressure to precisely adsorb individual seeds and place them at the designated location, completing the sowing operation.

[0046] 5. Seed Recycling (Parallel Process): The recycling mechanism 18 operates continuously while the sowing operation is underway. Any seeds that are not successfully adsorbed and may be missed will be immediately sucked into the recycling bin 1801 by the suction generated by the recycling system through the fixed tube 1805 and the seed tube 1803, ensuring that no seeds are missed or wasted in the sowing row.

[0047] 6. Operation Adjustment and Monitoring: During the operation, the operator can fine-tune the travel speed at any time through the power adjustment mechanism 205 to adapt to different field conditions. Simultaneously, the sowing and harvesting progress can be observed to ensure operation quality.

[0048] 7. Completion of Operation: After sowing a row or plot of land, the operator first turns off the motor 8 via the first switch 311, stopping the seeder. Shortly after, the operator turns off the fan mechanism 16 via the second switch 312, stopping the negative pressure system. Finally, the seeds collected in the recycling bin 1801 can be discharged through the discharge pipe 1804 for reuse.

[0049] 8. Handrail 202 height adjustment (optional): Depending on the height of different operators, the locking part 203 on the handrail 202 mechanism 2 can be loosened, the handrail 202 can be slid up and down to a comfortable height, and then the locking part 203 can be tightened to fix it, thereby optimizing ergonomics and reducing operator fatigue.

[0050] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A pneumatic precision seeder, comprising a frame (1), a handle mechanism (2), a control system (3), a front wheel mechanism (4), a rear wheel mechanism (5), a seeding mechanism (6), a battery (7), a motor (8), a fan mechanism (16), a gearbox (12), and an intermediate shaft (13), characterized in that, The frame (1) is connected to the armrest mechanism (2); The control system (3) is connected to the frame (1); The control system (3) is connected to the motor (8); The control system (3) is connected to the battery (7), and the motor (8) is connected to the battery (7); The control system (3) is connected to the fan mechanism (16), and the fan mechanism (16) is connected to the battery (7); The motor (8) is connected to the front wheel mechanism (4) via a transmission. The front wheel mechanism (4) is connected to the rear wheel mechanism (5) in a transmission connection; The rear wheel mechanism (5) is connected to the gearbox (12) in a transmission connection; The gearbox (12) is connected to the intermediate shaft (13) in a transmission connection; The intermediate shaft (13) is connected to the seeding mechanism (6) via a transmission.

2. The air-suction precision seeder according to claim 1, characterized in that, It also includes a height adjustment mechanism (17), which is connected to the frame (1); The height adjustment mechanism (17) includes a fixed column (1701), an adjustment column (1702), and a connecting plate (1703). The fixed column (1701) cooperates with the adjusting column (1702); The adjusting column (1702) is connected to the connecting plate (1703); The connecting plate (1703) is connected to the seeding mechanism (6).

3. The air-suction precision seeder according to claim 1, characterized in that, It also includes a recycling mechanism (18), which includes a recycling bin (1801), an air intake pipe (1802), a seed tube (1803), an exhaust pipe (1804), and a fixing pipe (1805). The recycling bin (1801) is connected to the handrail mechanism (2); The recycling bin (1801) is connected to the suction pipe (1802); The recycling bin (1801) is connected to the seed tube (1803); The recycling bin (1801) is connected to the discharge pipe (1804); The air intake pipe (1802) is connected to the fan mechanism (16); The fixed tube (1805) is connected to the seeding mechanism (6); The seed tube (1803) is connected to the fixing tube (1805).

4. The air-suction precision seeder according to claim 1, characterized in that, The motor (8) is equipped with a first sprocket (801); The front wheel mechanism (4) is provided with a first drive shaft (401), and the first drive shaft (401) is provided with a second sprocket (402). The first sprocket (801) and the second sprocket (402) are connected by a first chain (9).

5. The air-suction precision seeder according to claim 1, characterized in that, The front wheel mechanism (4) is provided with a first drive shaft (401), and the first drive shaft (401) is provided with a third sprocket (403). The rear wheel mechanism (5) is provided with a second drive shaft (501), and the second drive shaft (501) is provided with a fourth sprocket (502). The third sprocket (403) and the fourth sprocket (502) are connected by a second chain (10).

6. The air-suction precision seeder according to claim 1, characterized in that, The rear wheel mechanism (5) is provided with a second drive shaft (501), and the second drive shaft (501) is provided with a fifth sprocket (503). The gearbox (12) is provided with a third drive shaft (1203), and the third drive shaft (1203) is provided with a sixth sprocket (1201). The fifth sprocket (503) and the sixth sprocket (1201) are connected by a third chain (11).

7. The air-suction precision seeder according to claim 1, characterized in that, The gearbox (12) is provided with a fourth drive shaft (1204), and the fourth drive shaft (1204) is provided with a seventh sprocket (1202). The intermediate shaft (13) is provided with an eighth sprocket (1301); The seventh sprocket (1202) and the eighth sprocket (1301) are connected by a fourth chain (14).

8. The air-suction precision seeder according to claim 1, characterized in that, The intermediate shaft (13) is equipped with a ninth sprocket (1302); The seeding mechanism (6) is provided with a fifth drive shaft (601), and the fifth drive shaft (601) is provided with a tenth sprocket (602). The ninth sprocket (1302) and the tenth sprocket (602) are connected by the fifth chain (15).

9. The air-suction precision seeder according to claim 1, characterized in that, The control system (3) is equipped with a switching mechanism; The switching mechanism includes a first switching component (311) and a second switching component (312).

10. The air-suction precision seeder according to claim 1, characterized in that, The handrail mechanism (2) includes a fixing member (201), a handrail (202), and a locking component (203). The fastener (201) is slidably connected to the handrail (202); The fastener (201) is provided with a locking hole (204); The locking component (203) cooperates with the locking hole (204); The armrest mechanism (2) is also provided with a power adjustment mechanism (205); The power adjustment mechanism (205) is connected to the control system (3).

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