Portable small seed uniform broadcast sowing apparatus

Abstract

The present invention discloses a portable small seed uniform sowing apparatus, and relates to the technical field of sowing devices, the portable small seed uniform sowing apparatus comprises a seed uniform sowing device body and a sowing fertilization mechanism arranged at the bottom of the seed uniform sowing device body; the two broadcast sowing angle adjusting mechanisms are arranged in the broadcast sowing and fertilizing mechanism; the stirring and quantitative conveying mechanism is arranged in the uniform seed spreader body; the sowing angle adjusting mechanism comprises a cylindrical bin, the cylindrical bin is arranged in the sowing and fertilizing mechanism, the bottom of the cylindrical bin is connected with three sowing pipes, the two ends of the top of the cylindrical bin are both rotationally connected with telescopic guide plates, one ends of the two telescopic guide plates are both rotationally connected in the sowing and fertilizing mechanism, and the other ends of the two telescopic guide plates are both rotationally connected in the sowing and fertilizing mechanism. One end of the cylindrical bin is connected with a connecting shaft, and through the arrangement of the spreading angle adjusting mechanism, the spreading angle can be flexibly adjusted, so that a larger spreading range is obtained, and the overall work progress is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of seeders, and particularly to a portable small-seed uniform seeding device. Background Art

[0002] Under the development trend of modern precision agriculture, the requirements for the quality of seed sowing are becoming increasingly stringent. Due to their tiny size and light weight, it is extremely difficult to precisely control the uniformity, depth, and seeding rate of small seeds during the sowing process. Achieving uniform seeding is a key link to ensure the neat growth of crops, make full use of land resources and nutrients, and ultimately improve the yield and quality of agricultural crops. Traditional extensive sowing can no longer meet the current needs of fine agricultural planting for maximizing economic and ecological benefits, and there is an urgent need for a seeding device that can be precisely and conveniently operated to adapt to this change.

[0003] When existing small-seed seeding devices are in use, small seeds are usually stored inside the device, and then the device is manually shaken or the feeding tray is toggled by hand to sow the small seeds. The operation is relatively convenient and can save certain labor and time costs.

[0004] However, existing portable small-seed uniform seeding devices have the following deficiencies: Existing portable small-seed seeding devices cannot flexibly adjust the direction during seeding, resulting in a relatively fixed direction during actual sowing and a small seeding range, which is likely to affect the accuracy of seeding work and is difficult to meet diverse seeding requirements.

[0005] 2) Existing portable small-seed seeding devices cannot ensure the uniformity during seeding, resulting in poor accuracy in actual sowing, affecting the yield and quality of agricultural crops. Moreover, fertilization cannot be carried out simultaneously during sowing, which leads to the need for manual secondary fertilization operations, likely affecting work efficiency and being difficult to meet actual usage requirements.

[0006] 3) Existing portable small-seed seeding devices cannot control the amount of fertilizer during fertilization. When manually fertilizing, it is easy to cause uneven fertilization of the sown seeds, thereby affecting their growth and being difficult to meet the requirements of fine planting.

[0007] Therefore, we propose a portable small-seed uniform seeding device to solve the problems raised above. Summary of the Invention

[0008] The purpose of the present invention is to provide a portable small-seed uniform seeding device. By setting a seeding angle adjustment mechanism, the angle during seeding can be flexibly adjusted to obtain a larger seeding range, thereby improving the overall work progress and solving the problems raised in the above background art.

[0009] To achieve the above object, the present invention provides the following technical solution: A portable small-seed uniform sowing device, including the main body of the seed uniform sower, A sowing and fertilizing mechanism, arranged at the bottom of the main body of the seed uniform sower; Two sowing angle adjusting mechanisms, both arranged inside the sowing and fertilizing mechanism; A stirring and quantitative conveying mechanism, arranged inside the main body of the seed uniform sower; The sowing angle adjusting mechanism includes a cylindrical bin, the cylindrical bin is arranged inside the sowing and fertilizing mechanism, three sowing pipes are connected to the bottom of the cylindrical bin, both ends of the top of the cylindrical bin are rotatably connected with telescopic guiding plates, one ends of the two telescopic guiding plates are rotatably connected inside the sowing and fertilizing mechanism, one end of the cylindrical bin is connected with a connecting shaft, one end of the connecting shaft movably penetrates through the sowing and fertilizing mechanism and is connected with a worm gear, the outer side of the worm gear is meshed with a worm, a protective housing is arranged outside the worm gear and the worm, and one end of the worm movably penetrates through the protective housing and is connected with an operating handwheel.

[0010] Preferably, the sowing and fertilizing mechanism includes two sowing wheels, two first connecting rotating shafts and two first belt wheels. The two sowing wheels are respectively installed outside a corresponding first connecting rotating shaft, the two first belt wheels are respectively installed outside one end of a corresponding first connecting rotating shaft, a first transmission belt is sleeved outside the two first belt wheels, one end of a single first connecting rotating shaft is connected with a servo motor, the servo motor drives the single first connecting rotating shaft to drive the single sowing wheel to rotate, thereby starting the small-seed sowing work. The single first belt wheel transfers the rotational force to the other first belt wheel through the first transmission belt, thereby driving the other first connecting rotating shaft and sowing wheel to rotate, and performing the fertilizing work after the seed sowing is completed; The sowing and fertilizing mechanism includes two groups of fixed brackets. The two groups of fixed brackets are both fixedly installed at the bottom of the main body of the seed uniform sower. A fixed cylinder is installed inside each group of fixed brackets. The two sowing wheels are respectively arranged inside a corresponding fixed cylinder. A plurality of material loading cavities are formed on the outer side of each sowing wheel. A sowing port is installed at the bottom of each fixed cylinder. Each sowing angle adjusting mechanism is respectively arranged inside a corresponding sowing port.

[0011] Preferably, the stirring and metering conveyor mechanism includes a fertilizer storage box installed inside the seed broadcaster body. A second connecting rotating shaft is provided inside the fertilizer storage box, and a plurality of stirring blades are evenly distributed on the outer side of the second connecting rotating shaft. Second belt pulleys are installed on the outer sides of one end of the second connecting rotating shaft and a single first connecting rotating shaft, and a second transmission belt is sleeved on the outer sides of the two second belt pulleys. Three first rotary valves are installed at the bottom of the fertilizer storage box, and a first discharge pipe is connected to the bottom of each first rotary valve.

[0012] Preferably, a seed metering conveyor mechanism is provided inside the seed broadcaster body; The seed metering conveyor mechanism includes a small-seed storage box installed inside the seed broadcaster body. Three second rotary valves are installed at the bottom of the small-seed storage box, and a second discharge pipe is connected to the bottom of each second rotary valve.

[0013] Preferably, a folding support mechanism is provided on the outer side of the seed broadcaster body; The folding support mechanism includes two U-shaped frames respectively installed at both ends of the bottom of the seed broadcaster body. A damping rotating shaft is installed inside each U-shaped frame, and two support frames are installed on the outer side of each damping rotating shaft. One end of every two support frames is rotatably connected to a fixed frame, and a bottom plate is fixedly installed at the bottom of each fixed frame. Two brake wheels are installed at one end of the bottom of each bottom plate.

[0014] Preferably, two insertion frames are installed on the top of a single bottom plate, and two insertion blocks are installed on the top of the other bottom plate. The two insertion blocks are respectively inserted inside the corresponding insertion frames. A fastening bolt is installed at one end of each insertion frame, and one end of each fastening bolt movably penetrates through the corresponding insertion frame and is connected to the corresponding insertion block.

[0015] Preferably, a plurality of hinges are installed at the bottom of the seed broadcaster body, and a bin door is installed at one end of the plurality of hinges. A first handle is installed on the surface of the bin door.

[0016] Preferably, two fixed frames are installed at the bottom of the seed broadcaster body, and the two fixed frames are respectively attached to the outer sides of the corresponding fixed cylinders. The two fixed frames respectively correspond to the three first discharge pipes and the three second discharge pipes.

[0017] Preferably, two feeding ports are installed at the top of the seed broadcaster body, and the two feeding ports respectively correspond to the fertilizer storage box and the small-seed storage box. A sealing cover is installed at the top of each feeding port.

[0018] Preferably, a second handle is fixedly installed on the top of the seed uniform sower body through bolts, and an anti-slip sheath is sleeved on the outer side of the second handle.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting a sowing angle adjusting mechanism, the present invention can flexibly adjust the angle during sowing to obtain a larger sowing angle, improve the overall accuracy of sowing work, and the adjustment is relatively convenient with higher versatility, which can meet diverse sowing requirements.

[0020] 2. By setting a sowing and fertilizing mechanism, the present invention can ensure the uniformity of small seeds during sowing, thereby improving the accuracy of actual sowing work, enhancing the yield and quality of subsequent crops. At the same time, fertilizing work is carried out synchronously after the sowing of small seeds, thus saving labor and time costs and improving the overall work efficiency, which can meet actual usage requirements.

[0021] 3. By setting a stirring and quantitative conveying mechanism, the present invention can control the fertilizer output during sowing and fertilizing, ensure uniform fertilization of small seeds, thereby reducing the yield difference of subsequent crops, and at the same time prevent fertilizer caking, thus ensuring the smoothness of the instrument during use, which can meet the requirements of fine planting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional front view structure diagram of a portable small-seed uniform sower of the present invention; Figure 2 is a three-dimensional side view structure diagram of a portable small-seed uniform sower of the present invention; Figure 3 is a three-dimensional internal structure diagram of a portable small-seed uniform sower of the present invention; Figure 4 is a three-dimensional partial structure diagram of a portable small-seed uniform sower of the present invention; Figure 5 is a three-dimensional enlarged view of the sowing and fertilizing mechanism of a portable small-seed uniform sower of the present invention; Figure 6 is a three-dimensional enlarged view of the stirring and quantitative conveying mechanism of a portable small-seed uniform sower of the present invention; Figure 7 is a three-dimensional enlarged view of the seed quantitative conveying mechanism of a portable small-seed uniform sower of the present invention; Figure 8 is a three-dimensional enlarged view of the folding bracket mechanism of a portable small-seed uniform sower of the present invention; Figure 9This is an enlarged three-dimensional view of the sowing angle adjustment mechanism in a portable small-seed uniform sowing device of the present invention.

[0023] In the figure: 1. Seed uniform sowing device body; 2. Sowing and fertilizing mechanism; 201. Fixed bracket; 202. Fixed cylinder; 203. Sowing wheel; 204. Servo motor; 205. First connecting rotating shaft; 206. First pulley; 207. First transmission belt; 208. Loading chamber; 209. Sowing port; 3. Stirring and quantitative conveying mechanism; 301. Fertilizer storage box; 302. Second pulley; 303. Second transmission belt; 304. Second connecting rotating shaft; 305. Stirring paddle; 306. First rotary valve; 307. First discharge pipe; 4. Seed quantitative conveying mechanism; 401. Small-seed storage box; 402. Second rotary valve; 403. Second discharge pipe; 5. Folding bracket mechanism; 501. U-shaped frame; 502. Damping rotating shaft; 503. Support frame; 504. Fixed frame; 505. Bottom plate; 506. Brake wheel; 6. Hinge; 7. Warehouse door; 8. First handle; 9. Fixed frame; 10. Feeding port; 11. Sealing cover; 12. Second handle; 13. Anti-slip sheath; 14. Insertion frame; 15. Insertion block; 16. Tightening bolt; 17. Sowing angle adjustment mechanism; 1701. Cylindrical bin; 1702. Sowing pipe; 1703. Telescopic guide plate; 1704. Connecting shaft; 1705. Worm gear; 1706. Worm; 1707. Protective housing; 1708. Operating handwheel. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to the attached Figure 1 - attached Figure 9 As shown, the present invention provides a technical solution: a portable small-seed uniform sowing device, including a seed uniform sowing device body 1, a sowing and fertilizing mechanism 2, arranged at the bottom of the seed uniform sowing device body 1; two sowing angle adjustment mechanisms 17, both arranged inside the sowing and fertilizing mechanism 2; a stirring and quantitative conveying mechanism 3, arranged inside the seed uniform sowing device body 1; The sowing angle adjustment mechanism 17 includes a cylindrical silo 1701. The cylindrical silo 1701 is arranged inside the sowing and fertilizing mechanism 2. Three sowing pipes 1702 are connected to the bottom of the cylindrical silo 1701. Both ends of the top of the cylindrical silo 1701 are rotatably connected with telescopic guide plates 1703. One end of each of the two telescopic guide plates 1703 is rotatably connected inside the sowing and fertilizing mechanism 2. One end of the cylindrical silo 1701 is connected with a connecting shaft 1704. One end of the connecting shaft 1704 movably penetrates through the sowing and fertilizing mechanism 2 and is connected with a worm gear 1705. A worm 1706 is meshed and connected to the outside of the worm gear 1705. A protective housing 1707 is arranged on the outside of the worm gear 1705 and the worm 1706. One end of the worm 1706 movably penetrates through the protective housing 1707 and is connected with an operating handwheel 1708. Through the setting of the sowing angle adjustment mechanism 17, the angle during sowing can be flexibly adjusted to obtain a larger sowing angle, improve the overall accuracy of the sowing work, and the adjustment is relatively convenient, with higher versatility and can meet diverse sowing requirements.

[0026] According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6As shown in the figure, the broadcast fertilization mechanism 2 includes two broadcast wheels 203, two first connecting rotating shafts 205, and two first belt pulleys 206. The two broadcast wheels 203 are respectively installed on the outer sides of the corresponding first connecting rotating shafts 205. The two first belt pulleys 206 are respectively installed on the outer sides of one end of the corresponding first connecting rotating shafts 205. A first transmission belt 207 is sleeved on the outer sides of the two first belt pulleys 206. One end of a single first connecting rotating shaft 205 is connected to a servo motor 204. The servo motor 204 drives the single first connecting rotating shaft 205 to drive the single broadcast wheel 203 to rotate, thereby starting the broadcast work of small seeds. The single first belt pulley 206 cooperates with the first transmission belt 207 to transmit the rotational force to the other first belt pulley 206, thereby driving the other first connecting rotating shaft 205 and the broadcast wheel 203 to rotate. After the seed broadcast is completed, fertilization work is carried out. Through the setting of the precise broadcast fertilization mechanism 2, it can ensure the uniform distribution of small seeds during the broadcast process, which is crucial for improving the accuracy of sowing operations. Through this uniform broadcast method, not only can the yield of crops be increased, but also the quality of crops can be significantly improved. In addition, after the broadcast is completed, the fertilization mechanism can immediately carry out fertilization work. This synchronous operation greatly saves labor and time costs. In this way, not only the overall work efficiency is improved, but also various usage requirements in actual agricultural production are ensured to be met. The broadcast fertilization mechanism 2 includes two groups of fixed brackets 201. The two groups of fixed brackets 201 are both fixedly installed at the bottom of the seed uniform broadcaster body 1. A fixed cylinder 202 is installed inside each group of fixed brackets 201. The two broadcast wheels 203 are respectively arranged inside the corresponding fixed cylinder 202. A plurality of material loading cavities 208 are opened on the outer sides of each broadcast wheel 203. A broadcast port 209 is installed at the bottom of each fixed cylinder 202. Each broadcast angle adjustment mechanism 17 is respectively arranged inside the corresponding broadcast port 209. Through the setting of the broadcast fertilization mechanism 2, the stability and uniformity during the broadcast process can be further ensured. The setting of this mechanism helps to reduce the operation difficulty of the seed uniform broadcaster body 1 during actual use, thereby effectively saving precious time costs and significantly improving the overall work efficiency.

[0027] According to Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown in the figure, the stirring and metering conveying mechanism 3 includes a fertilizer storage box 301. The fertilizer storage box 301 is installed inside the seed uniform sowing machine body 1. A second connecting rotating shaft 304 is arranged inside the fertilizer storage box 301. A plurality of stirring paddles 305 are evenly distributed on the outer side of the second connecting rotating shaft 304. Second belt pulleys 302 are installed on the outer sides of one end of the second connecting rotating shaft 304 and a single first connecting rotating shaft 205 respectively. A second transmission belt 303 is sleeved on the outer sides of the two second belt pulleys 302. Three first rotary valves 306 are installed at the bottom of the fertilizer storage box 301. A first discharge pipe 307 is connected to the bottom of each first rotary valve 306. Through the setting of the metering conveying mechanism 3, the output amount of fertilizer during the sowing and fertilizing process can be effectively controlled. This precise control mechanism ensures that small seeds can receive fertilizer evenly, thus significantly reducing the yield difference of crops caused by uneven fertilization. In addition, this mechanism can also prevent the phenomenon of fertilizer caking during use, ensuring the smooth operation of the seed uniform sowing machine body 1 during operation. The realization of this series of functions enables this mechanism to meet the requirements of fine planting technology in modern agriculture.

[0028] According to Figure 4 and Figure 7 As shown in the figure, a seed metering conveying mechanism 4 is arranged inside the seed uniform sowing machine body 1; The seed metering conveying mechanism 4 includes a small seed storage box 401. The small seed storage box 401 is installed inside the seed uniform sowing machine body 1. Three second rotary valves 402 are installed at the bottom of the small seed storage box 401. A second discharge pipe 403 is connected to the bottom of each second rotary valve 402. Through the setting of the seed metering conveying mechanism 4, quantitative discharge of small seeds can be realized, so as to ensure the uniformity during subsequent sowing, improve the precision and quality of the sowing work, and further increase the yield of subsequent crops.

[0029] According to Figure 1 、 Figure 2 and Figure 8 As shown in the figure, a folding support mechanism 5 is arranged on the outer side of the seed uniform sowing machine body 1; The folding support mechanism 5 includes two U-shaped frames 501, which are respectively installed at both ends of the bottom of the seed uniform sowing machine body 1. A damping rotating shaft 502 is installed inside each U-shaped frame 501, and two support frames 503 are installed outside each damping rotating shaft 502. One end of every two support frames 503 is rotatably connected to a fixed frame 504. A bottom plate 505 is fixedly installed at the bottom of each fixed frame 504, and two brake wheels 506 are installed at one end of the bottom of each bottom plate 505. Through the setting of the folding support mechanism 5, stable support can be provided for the seed uniform sowing machine body 1, and at the same time, the difficulty of moving and transporting the seed uniform sowing machine body 1 can be reduced. Moreover, the folding support mechanism 5 can be folded and stored, thereby reducing the occupied area when the seed uniform sowing machine body 1 is idle and further improving its portability.

[0030] According to Figure 1 、 Figure 2 and Figure 8 As shown, two insertion frames 14 are installed on the top of a single bottom plate 505, and two insertion blocks 15 are installed on the top of the other bottom plate 505. The two insertion blocks 15 are respectively inserted into the corresponding insertion frame 14. A fastening bolt 16 is installed at one end of each insertion frame 14, and one end of each fastening bolt 16 movably passes through the corresponding insertion frame 14 and is connected to the corresponding insertion block 15. Through the setting of the insertion frame 14, the insertion block 15 and the fastening bolt 16, the folding support mechanism 5 can be completely assembled and fixed, providing more reliable stable support. At the same time, the overall assembly difficulty is low, effectively saving labor and time costs and improving the overall work efficiency.

[0031] According to Figure 1 and Figure 4 As shown, a plurality of hinges 6 are installed at the bottom of the seed uniform sowing machine body 1, a bin door 7 is installed at one end of the plurality of hinges 6, and a first handle 8 is installed on the surface of the bin door 7. Through the setting of the hinge 6, the bin door 7 and the first handle 8, the seed uniform sowing machine body 1 can be conveniently opened, and then the internal structure of the seed uniform sowing machine body 1 can be overhauled, effectively reducing the manual operation difficulty and saving the later operation and maintenance costs.

[0032] According to Figure 4 As shown, two fixed frames 9 are installed at the bottom of the seed uniform sowing machine body 1. The two fixed frames 9 are respectively attached to the outside of the corresponding fixed cylinder 202. The two fixed frames 9 respectively correspond to the three first discharge pipes 307 and the three second discharge pipes 403. Through the setting of the fixed frame 9, it can be ensured that the small seeds for sowing and the fertilizers used for fertilization can quickly and accurately enter the sowing and fertilizing mechanism 2, thereby improving the fluency of the seed uniform sowing machine body 1 during use, further enhancing the uniformity during sowing and fertilizing, and greatly improving the precision and quality of the work.

[0033] According to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, two feeding ports 10 are installed on the top of the seed uniform sower body 1. The two feeding ports 10 respectively correspond to the fertilizer storage box 301 and the small seed storage box 401. A sealing cover 11 is installed on the top of each feeding port 10. Through the setting of the feeding port 10, small seeds required for sowing and fertilizers required for fertilization can be quickly and conveniently added into the seed uniform sower body 1. At the same time, the sealing cover 11 can be used to seal the feeding port 10, preventing external factors from interfering with the seeds and fertilizers, and effectively avoiding the seeds and fertilizers from falling out of the seed uniform sower body 1, thereby improving the sealing performance and protection performance of the seed uniform sower body 1.

[0034] According to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a second handle 12 is fixedly installed on the top of the seed uniform sower body 1 by bolts. An anti-slip sheath 13 is sleeved on the outside of the second handle 12. Through the setting of the second handle 12 and the anti-slip sheath 13, the difficulty for the operator to carry the seed uniform sower body 1 can be reduced. At the same time, the anti-slip sheath 13 is used to increase the friction between the human hand and the second handle 12, thereby preventing the seed uniform sower body 1 from being damaged due to slipping and falling.

[0035] Working principle: First, the seed uniform sower body 1 is transported to the designated operation site by an external device, and the servo motor 204 and the second rotary valve 402 form a closed information interaction and collaborative operation with an external controller to achieve an efficient control scheme.

[0036] During the placement and feeding stage, first, pull the two bottom plates 505 to rotate them, and drive the corresponding support frame 503 to rotate and unfold on the damping shaft 502, then insert the two plug-in blocks 15 on a single bottom plate 505 into the plug-in frame 14 on the other bottom plate 505, and screw the two fastening bolts 16 to fix them in sequence, thereby completing the overall unfolding and assembly of the folding bracket mechanism 5, then, grasp the second handle 12 and the anti-slip cover 13, and push the seed spreader body 1, causing the brake wheel 506 to rotate with friction with the ground, driving the seed spreader body 1 to move Move to the vicinity of the sowing position. After reaching the vicinity of the sowing position, use the locking piece of the brake wheel 506 to lock the brake wheel 506, and add the fertilizer required for fertilization and the small-grain seeds required for sowing into the fertilizer storage box 301 and the small-grain seed storage box 401 respectively from the two feeding ports 10. After adding, move the two sealing covers 11 to turn them over, cover and seal the corresponding feeding ports 10. After adding, turn the lower fastening bolts 16 to pull the two plug-in blocks 15 out of the corresponding plug-in frames 14, and fold the folding bracket mechanism 5 to return it to its original storage state.

[0037] During the discharging and loading stage, first, the three second rotary valves 402 are controlled to open synchronously through an external controller, so that a certain amount of small-grain seeds pass through the single fixed cylinder 202 from the small-grain seed storage box 401 through the second discharging pipe 403 and fall into the loading cavity 208 on the corresponding sowing wheel 203. Then, the servo motor 204 is controlled to start through the external controller, and the servo motor 204 drives the single first connecting shaft 205 to rotate, thereby driving the single sowing wheel 203 to rotate. At the same time, the first pulley 206 and the first transmission belt 207 transmit the rotational force to the other sowing wheel 203, so that the two sowing wheels 203 rotate synchronously. Since the preset angular positions of the two sowing wheels 203 are different, when the first sowing wheel 203 is preparing for seed discharging, the second sowing wheel 203 is The loading chamber 208 on the wheel 203 reaches the front position for preparing for fertilizer discharging. When the loading chamber 208 on the first spreading wheel 203 completes loading, the two spreading wheels 203 rotate synchronously. At this time, the loading chamber 208 on the other spreading wheel 203 reaches the loading position. The three first rotary valves 306 are controlled to open synchronously through an external controller, so that a certain amount of fertilizer passes through the corresponding fixed cylinder 202 from the first discharge pipe 307 and falls into the loading chamber 208 on the corresponding spreading wheel 203. In this process, the second pulley 302 cooperates with the second transmission belt 303 to transmit the rotational force to the second connecting shaft 304, so that the second connecting shaft 304 drives the stirring blade 305 to stir the fertilizer, so that the fertilizer is in an active state as a whole to avoid it from agglomerating.

[0038] During the broadcast fertilization stage, according to the above stage, the material loading chambers 208 on the two broadcast wheels 203 are respectively filled with small seeds and fertilizers. At this time, manually lift the second handle 12 to drive the seed uniform broadcaster body 1 to the directly above the broadcast area. At this time, the servo motor 204 continues to drive the two broadcast wheels 203 to rotate synchronously. When the material loading chamber 208 on the broadcast wheel 203 carrying small seeds reaches the broadcast opening 209 on the corresponding fixed cylinder 202, the small seeds in the material loading chamber 208 fall for broadcasting. After the broadcasting is completed, manually drive the seed uniform broadcaster body 1 to move forward, so that the broadcast wheel 203 carrying fertilizers moves to the above the broadcast area. At this time, the broadcasting of small seeds is completed, and the material loading chamber 208 on the broadcast wheel 203 carrying fertilizers reaches the broadcast opening 209 on the corresponding fixed cylinder 202, then the fertilizers in the material loading chamber 208 fall to fertilize the small seeds that have been broadcast. During the process of broadcast fertilization, if it is necessary to change the angles of broadcasting and fertilization, grasp and turn the operating handwheel 1708 to prompt the worm 1706 to drive the worm gear 1705 and the connecting shaft 1704 to rotate, so that the cylindrical bin 1701 rotates synchronously. At this time, the two telescopic guide plates 1703 are respectively extended and contracted under the action of the rotational force, ensuring that the seeds or fertilizers can accurately fall into the inside of the cylindrical bin 1701. After the rotational adjustment, the orientation of the broadcast pipe 1702 changes, prompting the angles of broadcast fertilization to change.

[0039] During the internal maintenance stage, by grasping and pulling the first handle 8, the hinge 6 is forced to drive the hatch door 7 to rotate and open. At this time, the fertilizer storage box 301 or the small seed storage box 401 can be taken out for cleaning, and at the same time, the first rotary valve 306 and the second rotary valve 402 can be maintained.

[0040] According to the above operations, the use of the portable small seed uniform broadcasting device can be completed.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A portable small-seed uniform sowing instrument, characterized in that: including the seed evenly spreading device body (1), a spreading and fertilizing mechanism (2) arranged at the bottom of the seed evenly spreading device body (1); two spreading angle adjusting mechanisms (17) both arranged inside the spreading and fertilizing mechanism (2); a stirring and metering conveying mechanism (3) arranged inside the seed evenly spreading device body (1); the spreading angle adjusting mechanism (17) includes a cylindrical bin (1701) arranged inside the spreading and fertilizing mechanism (2). Three spreading pipes (1702) are connected to the bottom of the cylindrical bin (1701). Both ends of the top of the cylindrical bin (1701) are rotatably connected with telescopic guide plates (1703). One ends of the two telescopic guide plates (1703) are rotatably connected inside the spreading and fertilizing mechanism (2). One end of the cylindrical bin (1701) is connected with a connecting shaft (1704). One end of the connecting shaft (1704) movably penetrates through the spreading and fertilizing mechanism (2) and is connected with a worm gear (1705). A worm (1706) is meshed and connected to the outside of the worm gear (1705). A protective housing (1707) is arranged on the outside of the worm gear (1705) and the worm (1706). One end of the worm (1706) movably penetrates through the protective housing (1707) and is connected with an operating handwheel (1708).

2. The portable small-seed uniform sowing device according to claim 1, wherein: the spreading and fertilizing mechanism (2) includes two spreading wheels (203), two first connecting rotating shafts (205) and two first belt pulleys (206). The two spreading wheels (203) are respectively installed on the outside of a corresponding first connecting rotating shaft (205). The two first belt pulleys (206) are respectively installed on the outside of one end of a corresponding first connecting rotating shaft (205). A first transmission belt (207) is sleeved on the outside of the two first belt pulleys (206). One end of a single first connecting rotating shaft (205) is connected with a servo motor (204). The servo motor (204) drives the single first connecting rotating shaft (205) to drive the single spreading wheel (203) to rotate, thereby starting the spreading work of small seeds. The single first belt pulley (206) cooperates with the first transmission belt (207) to transmit the rotational force to the other first belt pulley (206), thereby driving the other first connecting rotating shaft (205) and the spreading wheel (203) to rotate and performing the fertilizing work after the seed spreading is completed; the spreading and fertilizing mechanism (2) includes two groups of fixed brackets (201). The two groups of fixed brackets (201) are both fixedly installed at the bottom of the seed evenly spreading device body (1). A fixed cylinder (202) is installed inside each group of fixed brackets (201). The two spreading wheels (203) are respectively arranged inside a corresponding fixed cylinder (202). A plurality of material loading cavities (208) are formed on the outside of each spreading wheel (203). A spreading port (209) is installed at the bottom of each fixed cylinder (202). Each spreading angle adjusting mechanism (17) is respectively arranged inside a corresponding spreading port (209).

3. The portable small-seed uniform sowing device according to claim 2, wherein: The stirring and metering conveyor mechanism (3) includes a fertilizer storage box (301), the fertilizer storage box (301) is installed inside the seed uniform sower body (1), a second connecting rotating shaft (304) is arranged inside the fertilizer storage box (301), a plurality of stirring blades (305) are evenly distributed on the outer side of the second connecting rotating shaft (304), second belt pulleys (302) are installed on the outer sides of one end of the second connecting rotating shaft (304) and a single first connecting rotating shaft (205), a second transmission belt (303) is sleeved on the outer sides of the two second belt pulleys (302), three first rotary valves (306) are installed at the bottom of the fertilizer storage box (301), and a first discharge pipe (307) is connected to the bottom of each first rotary valve (306).

4. The portable small-seed uniform sowing device according to claim 3, characterized in that: A seed metering conveyor mechanism (4) is arranged inside the seed uniform sower body (1); The seed metering conveyor mechanism (4) includes a small-seed storage box (401), the small-seed storage box (401) is installed inside the seed uniform sower body (1), three second rotary valves (402) are installed at the bottom of the small-seed storage box (401), and a second discharge pipe (403) is connected to the bottom of each second rotary valve (402).

5. The portable small-seed uniform sowing device according to claim 4, characterized in that: A folding bracket mechanism (5) is arranged outside the seed uniform sower body (1); The folding bracket mechanism (5) includes two U-shaped frames (501), the two U-shaped frames (501) are respectively installed at both ends of the bottom of the seed uniform sower body (1), a damping rotating shaft (502) is installed inside each U-shaped frame (501), two support frames (503) are installed on the outer side of each damping rotating shaft (502), one end of every two support frames (503) is rotatably connected to a fixed frame (504), a bottom plate (505) is fixedly installed at the bottom of each fixed frame (504), and two brake wheels (506) are installed at one end of the bottom of each bottom plate (505).

6. The portable small-seed uniform sowing device according to claim 5, characterized in that: Two plug-in frames (14) are installed on the top of a single bottom plate (505), two plug-in blocks (15) are installed on the top of the other bottom plate (505), the two plug-in blocks (15) are respectively inserted into the inside of a corresponding plug-in frame (14), a fastening bolt (16) is installed at one end of each plug-in frame (14), and one end of each fastening bolt (16) movably penetrates through a corresponding plug-in frame (14) and is connected to a corresponding plug-in block (15).

7. The portable small-seed uniform sowing device according to claim 6, characterized in that: A plurality of hinges (6) are installed at the bottom of the seed uniform sower body (1), a bin door (7) is installed at one end of the plurality of hinges (6), and a first handle (8) is installed on the surface of the bin door (7).

8. The portable small-seed uniform sowing device according to claim 7, characterized in that: Two fixed frames (9) are installed at the bottom of the seed uniform sower body (1), the two fixed frames (9) are respectively attached to the outer sides of corresponding fixed cylinders (202), and the two fixed frames (9) respectively correspond to the three first discharge pipes (307) and the three second discharge pipes (403).

9. The portable small-seed uniform sowing apparatus according to claim 8, characterized in that: On the top of the seed uniform sower body (1), there are two feeding openings (10) installed, and the two feeding openings (10) correspond to the fertilizer storage box (301) and the small seed storage box (401) respectively. At the top of each feeding opening (10), there is a sealing cover (11) installed.

10. The portable small-seed uniform sowing device according to claim 9, characterized in that: On the top of the seed uniform sower body (1), a second handle (12) is fixedly installed by bolts, and an anti-slip sheath (13) is sleeved on the outer side of the second handle (12).

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