Multifunctional small agricultural machine

Abstract

The utility model relates to a multifunctional small agricultural machine which comprises a machine frame, and a walking mechanism, a plowing and soil preparation mechanism, a plowing mechanism, a seeding mechanism and a film covering mechanism are arranged on the machine frame. The tillage and soil preparation mechanism is located at the front end of the rack and comprises a first driving assembly, a first rotating shaft and a plurality of rotary tillage blade sets installed on the first rotating shaft, and the first driving assembly can drive the first rotating shaft to rotate; the ploughing mechanism comprises a ploughing blade with adjustable depth; the walking mechanism comprises a second rotating shaft and walking wheels; the seeding mechanism comprises a shell, a seed metering wheel, a seed protecting baffle, a third rotating shaft and a second driving assembly, the second rotating shaft can drive the third rotating shaft and the seed metering wheel to rotate through the second driving assembly in the rotating process, and a seed feeding opening is formed in the shell; the film covering mechanism is located at the tail end of the rack and comprises a film covering roller rotationally connected to the rack. The seeding machine can solve the problems of low agricultural operation efficiency under special terrains, poor adaptability of existing seeding machinery and the like, meets the seeding requirements of different seeds, and improves the seeding quality and efficiency.

Description

Technical Field

[0001] This utility model relates to an agricultural machine, and more particularly to a multifunctional small agricultural machine, belonging to the technical field of agricultural machinery and equipment. Background Technology

[0002] With the development of agricultural technology, the level of agricultural mechanization is increasing. However, in special terrain conditions such as mountains, rugged roads, numerous slopes and limited land, and small and fragmented plots, the application of large agricultural machinery is limited. Combined equipment cannot achieve both planting and harvesting, which mostly relies on manual labor, resulting in low efficiency and high costs. When relying on manual labor, sowing and harvesting are the most time-consuming and labor-intensive stages of production. The current prominent problem is the limited variety of sowing machinery, and the fact that its performance and quality do not fully meet requirements. Furthermore, as a crucial part of production, sowing currently lacks universally adaptable sowing machinery.

[0003] Currently, most seed metering devices on the market use an internally filled vertical disc seed metering device. This device utilizes a novel internal filling principle, offering excellent filling performance, uniform seed distribution, accurate seed dispensing, and adaptability to both normal and high-speed operation. However, in practical applications, when seed size varies significantly, the rate of empty holes and missed sowing is high. Furthermore, during the seed metering process, the excessively long seed guard plate and imperfect hole structure cause considerable friction on the seeds, resulting in seed damage and affecting germination rates, thus failing to meet farmers' sowing requirements. Utility Model Content

[0004] This utility model addresses the aforementioned problems in the existing technology by providing a multifunctional small agricultural machine. This device can solve problems such as low efficiency in agricultural operations under special terrain and poor adaptability of existing sowing machinery, meet the sowing needs of different seeds, and improve sowing quality and efficiency.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A multi-functional small agricultural machine includes a frame on which a traveling mechanism is mounted. The frame also sequentially houses a tillage mechanism, a plowing mechanism, a sowing mechanism, and a mulching mechanism. The traveling mechanism is located between the plowing and sowing mechanisms. The tillage mechanism, located at the front end of the frame, includes a first drive assembly, a first rotating shaft, and multiple sets of rotary tiller blades mounted on the first rotating shaft. The first rotating shaft is rotatably connected to the frame, and the first drive assembly can drive the first rotating shaft to rotate. The plowing mechanism includes adjustable-depth plowing blades. The traveling mechanism includes a second rotating shaft and a... The second rotating shaft is rotatably connected to the frame and has wheels mounted at both ends. The seeding mechanism includes a housing, a seed metering wheel, a seed guard baffle, a third rotating shaft, and a second drive assembly. The third rotating shaft is rotatably connected to the frame, and the second rotating shaft can be driven to rotate by the second drive assembly during rotation. The seed metering wheel is located inside the housing and is fixedly connected to the third rotating shaft. The seed guard baffle is located inside the housing and is fixedly connected to the housing. The housing is also provided with a seed inlet. The film covering mechanism is located at the tail end of the frame and includes a film covering roller rotatably connected to the frame.

[0007] Preferably, the first drive assembly includes a drive motor, a first sprocket, a second sprocket, and a transmission chain. The drive motor is mounted on the frame and drives the first rotating shaft to rotate through the first sprocket, the second sprocket, and the transmission chain.

[0008] Preferably, the rotary tiller blade set includes a rotating disk and multiple rotary tiller blades installed on the left and right side walls of the rotating disk. The multiple sets of rotary tiller blade sets are distributed along the length direction of the first rotating shaft, and during the rotation of the first rotating shaft, the scale ranges covered by adjacent rotary tiller blade sets have overlapping areas.

[0009] Preferably, a vertically arranged adjusting rod is installed on one side of the plowing blade. The adjusting rod is detachably and fixedly connected to the frame, and the adjusting rod can be adjusted up and down along the frame.

[0010] Preferably, the housing includes a first housing and a second housing. The first housing is hollow inside and open on one side, and is fixedly connected to the frame. The second housing is fastened to the opening of the first housing. The second housing has a seed inlet on the side away from the first housing. The second housing has a seed inlet communicating with the seed inlet, and a seed inlet baffle is inserted at the seed inlet on the second housing.

[0011] Preferably, the sidewall of the seed metering wheel is provided with at least one ring of compound holes evenly distributed around its axis, the compound holes including an outer hole and an inner hole.

[0012] Preferably, the seed protection baffle has an arc-shaped structure and a connecting part is provided on the side near the second housing. The second housing has a plurality of arc-shaped waist holes around its axis. The seed protection baffle is connected to the second housing through the arc-shaped waist holes, and the installation angle of the seed protection baffle is adjusted through the arc-shaped waist holes.

[0013] Preferably, the seed protection baffle, the seed metering wheel, and the first housing are coaxially arranged, with the seed metering wheel located between the first housing and the seed protection baffle, and the seed inlet corresponding to the position of the seed protection baffle.

[0014] Preferably, the second drive assembly includes a first gear, a second gear, a third sprocket, a fourth sprocket, and a transmission chain. During the rotation of the traveling wheel and the second rotating shaft, the third rotating shaft and the seeding wheel can be driven to rotate through the first gear, the second gear, the third sprocket, the fourth sprocket, and the transmission chain.

[0015] Preferably, the rear end of the frame is provided with a handrail, and an electrical box is also provided on the frame.

[0016] Therefore, compared with the prior art, the present invention has the following advantages:

[0017] (1) This utility model integrates multiple functions such as tillage, plowing, sowing and mulching by setting a walking mechanism, tillage mechanism, ploughing mechanism, sowing mechanism and mulching mechanism, realizing the multi-functional small agricultural machinery with multiple uses, improving work efficiency and reducing costs. It is especially suitable for special terrain conditions such as mountainous areas, rugged roads, many slopes and little land, small plot area and many fragments.

[0018] (2) The present invention has a seeding mechanism with a compound hole in the seed metering wheel, which has good seed filling performance, accurate seed cleaning and quantitative distribution, and uniform seeding. It can reduce the impact of seed size difference on sowing, reduce empty holes and missed sowing rate, and improve the stress of seeds during the seed metering process, reduce seed damage, improve germination rate, and meet the sowing requirements.

[0019] (3) This utility model adopts a mechanical transmission method, which drives the seed metering wheel to rotate through the rotation of the walking wheel, thereby realizing the automation and mechanization of sowing and improving the accuracy and efficiency of sowing. Attached Figure Description

[0020] Figure 1 This is the front view of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the tillage and land preparation mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the plowing mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the seeding mechanism in this utility model;

[0025] Figure 6 This is an exploded view of the seeding mechanism in this utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the second shell in this utility model;

[0027] Figure 8 This is a schematic diagram of the seeding wheel in this utility model;

[0028] Figure 9 This is a schematic diagram of the installation of the seed metering wheel, seed protection baffle and first housing in this utility model;

[0029] Figure 10 This is a schematic diagram of the structure of the second driving component in this utility model.

[0030] Diagram Explanation: 1-Frame, 2-Walking Mechanism, 3-Tillage Mechanism, 4-Plowing Mechanism, 5-Sowing Mechanism, 6-Mulching Mechanism, 7-First Rotary Shaft, 8-Rotary Tiller Blade Assembly, 9-Plowing Blade, 10-Second Rotary Shaft, 11-Walking Wheel, 12-Drive Motor, 13-Seed Protector Baffle, 14-Third Rotary Shaft, 15-Seed Inlet, 16-Mulching Roller, 17-Drive Motor, 18-First Sprocket, 19-Second Sprocket, 20-Transmission Chain, 21-rotary disc, 22-rotary tillage blade, 23-adjusting rod, 24-first housing, 25-second housing, 26-seed inlet, 27-seed inlet, 28-seed inlet baffle, 29-double-shaped hole, 30-connecting part, 31-arc waist hole, 32-third sprocket, 33-fourth sprocket, 34-handrail, 35-electrical box, 36-side baffle, 37-outer hole, 38-inner hole, 39-first gear, 40-second gear. Detailed Implementation

[0031] The following specific embodiments, in conjunction with the appendix, demonstrate this approach. Figure 1-10 The technical solution of this utility model will be further described in detail below. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0032] Example 1:

[0033] like Figure 1 , 2As shown, this utility model provides a technical solution for a multi-functional small agricultural machine, including a frame 1, a walking mechanism 2 on the frame 1, and a tillage mechanism 3, a plowing mechanism 4, a sowing mechanism 5 and a mulching mechanism 6 arranged sequentially on the frame 1. The walking mechanism 2 is located between the plowing mechanism 4 and the sowing mechanism 5, integrating multiple functions such as tillage, plowing, sowing and mulching into one machine, realizing the multi-purpose use of the multi-functional small agricultural machine. In this application, the tillage mechanism 3 is on the front side of the device and the mulching mechanism 6 is on the rear side of the device.

[0034] like Figure 3 As shown, the tillage mechanism 3 is installed at the front end of the frame 1 and consists of a first drive assembly, a first rotating shaft 7 and multiple sets of rotary tillage blades 8 installed on the first rotating shaft 7. The two ends of the first rotating shaft 7 are rotatably connected to the vertical support rods on the left and right sides of the frame 1 through bearings, and the first drive assembly can drive the first rotating shaft 7 to rotate, thereby driving the rotary tillage blades 8 to rotate, so as to realize tillage operation.

[0035] like Figure 4 As shown, the above-mentioned plowing mechanism 4 includes an adjustable-depth plowing blade 9. The plowing blade 9 is existing technology, and its specific structure will not be described in detail here. A vertically arranged adjusting rod 23 is welded to the rear side of the plowing blade 9. The adjusting rod 23 is detachably and fixedly connected to the frame 1, and the adjusting rod 23 can be adjusted up and down along the frame 1. Specifically, the adjusting rod 23 has multiple adjusting holes along its length direction, and the adjustment and fixation with the frame 1 are achieved through the adjusting holes and fixing bolts.

[0036] The aforementioned walking mechanism 2 consists of a second rotating shaft 10 and walking wheels 11 fixedly installed at both ends of the second rotating shaft 10. The two ends of the second rotating shaft 10 are rotatably connected to the vertical support rods on the left and right sides of the frame 1 via bearings. During use, the operator pushes the device from the rear. Figure 1 For example, during the pushing process, the walking wheel 11 rotates clockwise.

[0037] like Figure 5 As shown, the seeding mechanism 5 consists of a housing, a seed metering wheel 12, a seed-protecting baffle 13, a third rotating shaft 14, and a second drive assembly. The two ends of the third rotating shaft 14 are rotatably connected to the vertical support rods on the left and right sides of the frame 1 via bearings. During the clockwise rotation of the second rotating shaft 10, the second drive assembly can drive the third rotating shaft 14 to rotate counterclockwise. The seed metering wheel 12 is located inside the housing and is fixedly connected to the third rotating shaft 14, meaning the seed metering wheel 12 also rotates counterclockwise. The seed-protecting baffle 13 is located inside the housing and is fixedly connected to the housing. The housing also has a seed inlet 15. During the rotation of the seed metering wheel 12, four stages are achieved: seed filling, seed cleaning, seed protection, and seed inlet. Seeds are discharged from the seed inlet 15.

[0038] The aforementioned film covering mechanism 6 is located at the tail end of the frame 1. It includes a film covering roller 16 rotatably connected to the vertical support rods on the left and right sides of the frame 1 via bearings. The film covering roller 16 is wrapped with film. During operation, one end of the film should be fixed at the starting end of the sowing area. During the movement of the device, the film covering roller 16 rotates clockwise to realize the laying of film and soil covering operation. The distance between the film covering mechanism 6 and the sowing mechanism 5 can be adjusted according to the actual situation to avoid the seeds falling on the film.

[0039] Example 2:

[0040] like Figure 1 , 2 As shown, this utility model provides another technical solution: a multifunctional small agricultural machine. The difference from embodiment 1 is that the first drive assembly consists of a drive motor 17, a first sprocket 18, a second sprocket 19, and a transmission chain 20. The drive motor 17 is fixedly installed on the frame 1 by bolts, and the drive motor 17 drives the first rotating shaft 7 to rotate through the first sprocket 18, the second sprocket 19, and the transmission chain 20. The output end of the drive motor 17 is fixedly sleeved with the first sprocket 18, and the second sprocket 19 is fixedly sleeved on the first rotating shaft 7. The first sprocket 18 and the second sprocket 19 are connected by the transmission chain 20.

[0041] In this embodiment, a handrail 34 is welded or bolted to the rear end of the frame 1 to facilitate the pushing of the device. An electrical box 35 is also welded or bolted to the frame 1, and a power supply for the drive motor 17 is installed inside the electrical box 35.

[0042] Specifically, the rotary tiller blade assembly 8 consists of a rotating disk 21 and multiple rotary tiller blades 22 installed on the left and right side walls of the rotating disk 21. The multiple rotary tiller blade assemblies 8 are distributed along the length of the first rotating shaft 7. The rotary tiller blades 22 are L-shaped blades. During the rotation of the rotary tiller blade assembly 8 driven by the first rotating shaft 7, there is an overlap area between the scale ranges covered by adjacent rotary tiller blade assemblies 8, that is, the entire land area that can be rotary tilled and sown.

[0043] Example 3:

[0044] like Figure 6 , 7As shown in Figure 8, this utility model provides another technical solution: a multifunctional small agricultural machine. The difference from Embodiment 1 is that the aforementioned housing consists of a first housing 24 and a second housing 25. The first housing 24 is hollow inside with an opening on one side, and its side wall is fixedly connected to the frame 1 by bolts. The second housing 25 is fastened to the opening of the first housing 24 and fixed by bolts. A seed inlet 26 with an upper opening is installed on the side of the second housing 25 away from the first housing 24. A seed inlet 27 communicating with the seed inlet 26 is provided on the second housing 25. The lower part of the seed inlet 26 is inclined to facilitate seed entry through the seed inlet. Seeds enter the first housing 24. A seed inlet baffle 28 is inserted into the second housing 25 at the position of the seed inlet 27. Specifically, the side wall of the second housing 25 has corresponding slots extending forward and backward. The seed inlet baffle 28 is inserted into the slot and can block the seed inlet 27. By adjusting the position of the seed inlet baffle 28, the speed at which the seeds fall into the second housing 25 can be adjusted. In addition, the side wall of the second housing 25 has corresponding slots extending vertically. A baffle is inserted into the slot and can move up and down along the slot. The baffle is also integrally provided with a protrusion to prevent it from slipping out of the slot. The baffle is designed to facilitate cleaning of the seed inlet chamber 26.

[0045] Specifically, the sidewall of the seed metering wheel 12 is provided with at least one ring of compound holes 29 evenly circumferentially along its axis. The compound holes 29 consist of an outer hole 37 and an inner hole 38 that are interconnected. In this embodiment, there are two rings of compound holes 29, and multiple compound holes 29 are evenly provided in each ring. Furthermore, a stop is provided at the connection between the inner sidewall of the seed metering wheel 12 and the inner hole 38 to close the inner wall of the inner hole 38, that is, the seeds can fill the inner hole 38.

[0046] Specifically, the seed-protecting baffle 13 has an arc-shaped structure. The seed-protecting baffle 13 is installed at the bottom of the housing near the rear end of the device, and a connecting part 30 is integrally provided on the side near the second housing 25. The second housing 25 has multiple arc-shaped waist holes 31 around its axis. The seed-protecting baffle 13 is connected to the second housing 25 through the arc-shaped waist holes 31, and the installation angle of the seed-protecting baffle 13 can be adjusted through the arc-shaped waist holes 31 to ensure an appropriate installation angle. If the installation angle is too large, that is, the top of the seed-protecting baffle 13 is installed too high, it increases the holding effect of the inner hole on the seeds, affecting seed cleaning and causing re-sowing. If the tilt angle is too small, that is, the top of the seed-protecting baffle 13 is installed too low, it reduces the holding effect of the inner hole on the seeds, and the seeds fall back into the seed filling area before reaching the opening at the top of the seed-protecting baffle 13, causing missed sowing. The position of the seed-protecting baffle 13 is adjusted according to the specific situation.

[0047] Specifically, the seed protection baffle 13, the seed metering wheel 12 and the first housing 24 are coaxially arranged, and the seed metering wheel 12 is located between the first housing 24 and the seed protection baffle 13, and the seed inlet 15 corresponds to the position of the seed protection baffle 13.

[0048] Specifically, such as Figure 10 As shown, this embodiment provides a specific second drive assembly, which consists of a first gear 39, a second gear 40, a third sprocket 32, a fourth sprocket 33, and a transmission chain 20. During the rotation of the traveling wheel 11 and the second rotating shaft 10, the third rotating shaft 14 and the seeding wheel 12 can be driven to rotate through the first gear 39, the second gear 40, the third sprocket 32, the fourth sprocket 33, and the transmission chain 20. The first gear 39 is fixedly sleeved on the outer wall of the second rotating shaft 10. The second gear 40 and the third sprocket 32 ​​are both fixedly installed on both sides of the fixed shaft. The two ends of the fixed shaft are rotatably connected to the vertical support rods on the left and right sides of the frame 1 through bearings, and the second gear 40 is meshed with the first gear 39. The fourth sprocket 33 is fixedly sleeved on the side wall of the third rotating shaft 14. The third sprocket 32 ​​and the fourth sprocket 33 are connected through the transmission chain 20, but it is not limited to the above structure. As long as the seeding wheel 12 can rotate counterclockwise during the movement of the device, it is acceptable.

[0049] like Figure 9 As shown, the seed inlet 15 is the seeding area. In the counterclockwise direction, the area between the seed inlet 15 and the top of the seed protection baffle is the seed filling area and the seed cleaning area. The area between the top of the seed protection baffle and the seed inlet 15 is the seed protection area. To avoid seed wear, the top of the seed protection baffle is provided with an integral arc part. The seed dispensing process of the sowing mechanism is divided into four stages: seed filling, seed cleaning, seed protection and seeding. The seeds enter the inner cavity of the first shell from the seed inlet. As the seed dispensing wheel rotates, the seeds in the inner cavity of the first shell first enter the outer hole of the compound hole on the seed dispensing wheel 12 under the action of centrifugal force and gravity, and gradually enter the inner hole of the compound hole. The seeds in the inner hole of the compound hole enter the seeding area under the protection of the seed protection baffle and complete the seeding under the action of gravity and centrifugal force.

[0050] This utility model provides a multi-functional small agricultural machine that integrates tillage, plowing, sowing, and mulching functions into one unit through a walking mechanism, a tillage mechanism, a plowing mechanism, a sowing mechanism, and a mulching mechanism. This achieves multi-purpose functionality, improves operational efficiency, and reduces costs. It is particularly suitable for special terrain conditions such as mountainous areas, rugged roads, sloping terrain with limited land, and small, fragmented plots. The sowing mechanism features a compound-hole seed metering wheel with excellent seed filling performance, accurate seed distribution, and uniform seeding. This reduces the impact of seed size differences on sowing, minimizes missed sowing and voids, and improves the stress on seeds during metering, reducing seed damage and increasing germination rate, thus meeting sowing requirements. The mechanical transmission system, where the walking wheel rotates to drive the seed metering wheel, automates and mechanizes sowing, improving precision and efficiency.

[0051] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A multi-functional small agricultural machine, comprising a frame (1), wherein a walking mechanism (2) is provided on the frame (1), characterized in that: The frame (1) is also provided with a tillage mechanism (3), a plowing mechanism (4), a sowing mechanism (5) and a mulching mechanism (6) in sequence, and the walking mechanism (2) is located between the plowing mechanism (4) and the sowing mechanism (5); The tillage mechanism (3) is located at the front end of the frame (1) and includes a first drive assembly, a first rotating shaft (7) and multiple sets of rotary tillage blades (8) mounted on the first rotating shaft (7). The first rotating shaft (7) is rotatably connected to the frame (1), and the first drive assembly can drive the first rotating shaft (7) to rotate. The plowing mechanism (4) includes plowing blades (9) with adjustable depth. The walking mechanism (2) includes a second rotating shaft (10) and walking wheels (11) installed at both ends of the second rotating shaft (10). The second rotating shaft (10) is rotatably connected to the frame (1). The sowing mechanism (5) includes a housing, a seed metering wheel (12), a seed protection baffle (13), a third rotating shaft (14), and a second drive assembly. The third rotating shaft (14) is rotatably connected to the frame (1). During the rotation of the second rotating shaft (10), the third rotating shaft (14) can be driven to rotate by the second drive assembly. The seed metering wheel (12) is located inside the housing and is fixedly connected to the third rotating shaft (14). The seed protection baffle (13) is located inside the housing and is fixedly connected to the housing. The housing is also provided with a seed inlet (15). The coating mechanism (6) is located at the tail end of the frame (1) and includes a coating roller (16) rotatably connected to the frame (1).

2. The multifunctional small agricultural machinery according to claim 1, characterized in that: The first drive assembly includes a drive motor (17), a first sprocket (18), a second sprocket (19), and a transmission chain (20). The drive motor (17) is mounted on the frame (1), and the drive motor (17) drives the first rotating shaft (7) to rotate through the first sprocket (18), the second sprocket (19), and the transmission chain (20).

3. The multifunctional small agricultural machinery according to claim 2, characterized in that: The rotary tillage blade group (8) includes a rotating disk (21) and multiple rotary tillage blades (22) installed on the left and right side walls of the rotating disk (21). The multiple rotary tillage blade groups (8) are distributed along the length direction of the first rotating shaft (7), and during the rotation of the first rotating shaft (7) driving the rotary tillage blade group (8), there is an intersection area in the scale range covered by adjacent rotary tillage blade groups (8).

4. The multifunctional small agricultural machinery according to claim 1, characterized in that: A vertically arranged adjusting rod (23) is installed on one side of the plowing blade (9). The adjusting rod (23) is detachably and fixedly connected to the frame (1), and the adjusting rod (23) can be adjusted up and down along the frame (1).

5. The multifunctional small agricultural machinery according to claim 1, characterized in that: The housing includes a first housing (24) and a second housing (25). The first housing (24) is hollow inside and open on one side. The first housing (24) is fixedly connected to the frame (1). The second housing (25) is fastened to the opening of the first housing (24). The second housing (25) has a seed inlet (26) on the side away from the first housing (24). The second housing (25) has a seed inlet (27) communicating with the seed inlet (26). A seed inlet baffle (28) is inserted on the second housing (25) at the seed inlet (27).

6. The multifunctional small agricultural machinery according to claim 5, characterized in that: The sidewall of the seeding wheel (12) is provided with at least one ring of compound holes (29) evenly circumferentially along its axis. The compound holes (29) include an outer hole (37) and an inner hole (38).

7. The multifunctional small agricultural machinery according to claim 6, characterized in that: The seed protection baffle (13) has an arc-shaped structure and a connecting part (30) is provided on the side of it close to the second housing (25). The second housing (25) has a plurality of arc-shaped waist holes (31) around its axis. The seed protection baffle (13) is connected to the second housing (25) through the arc-shaped waist holes (31) and the installation angle of the seed protection baffle (13) is adjusted through the arc-shaped waist holes (31).

8. The multifunctional small agricultural machinery according to claim 7, characterized in that: The seed protection baffle (13), the seed metering wheel (12) and the first housing (24) are coaxially arranged, and the seed metering wheel (12) is located between the first housing (24) and the seed protection baffle (13). The seed inlet (15) corresponds to the position of the seed protection baffle (13).

9. The multifunctional small agricultural machinery according to claim 8, characterized in that: The second drive assembly includes a first gear (39), a second gear (40), a third sprocket (32), a fourth sprocket (33), and a transmission chain (20). During the rotation of the walking wheel (11) and the second rotating shaft (10), the third rotating shaft (14) and the seeding wheel (12) can be driven to rotate through the first gear (39), the second gear (40), the third sprocket (32), the fourth sprocket (33), and the transmission chain (20).

10. The multifunctional small agricultural machinery according to claim 1, characterized in that: The rear end of the frame (1) is provided with a handrail (34), and the frame (1) is also provided with an electrical box (35).

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