Portable seeder for labor practice

Abstract

The invention relates to the technical field of seeding machines, and discloses a portable seeding machine for labor practice, the portable seeding machine comprises a metal mounting rack, stainless steel supporting legs are fixed at the bottom of the metal mounting rack, and a stainless steel mounting rack is fixed at the bottoms of the stainless steel supporting legs; the device is provided with the auxiliary seeding mounting mechanism, so that power can be provided for seeding, seeds adhered to the inner wall of the seeding blanking hopper can be assisted to fall down normally, the seeds can be uniformly dispersed into soil, students in labor practice can conveniently see and observe a seeding mechanical mechanism, and the students can conveniently perform labor practice and understand; the device is provided with the cleaning and maintaining mechanism which assists the seeding mechanism in removing stuck seeds in a seeding groove, the positions of a moving metal frame and bristles for cleaning can be conveniently locked, in the labor practice process, students can conveniently clean the stuck seeds, and the device also has high safety and is beneficial to the proceeding of labor practice.

Description

Technical Field

[0001] The invention relates to the technical field of seed drills, in particular to a portable seed drill used in labor practice. Background Art

[0002] Labor practice is a special form of labor practice in which students participate. It is an activity that combines labor with students' learning and growth. Labor practice can help students understand society more deeply. Through observation and experience in practice, they can more deeply understand the nature and laws of society. Students can see different social phenomena in labor and understand the working conditions and lifestyles of people from all walks of life, which helps them broaden their horizons and increase their social knowledge. In the process of labor practice, students can exercise their hands-on ability and problem-solving ability. For example, when making handicrafts or participating in agricultural labor, students need to do it themselves. Labor practice participation in sowing is an effective way of education. It can not only help students understand agricultural knowledge, but also cultivate their hands-on ability, teamwork spirit and sense of responsibility. In labor practice activities, students will participate in the whole process of crop planting, including turning over the soil, sowing, watering, weeding, fertilizing and finally harvesting. Labor practice is not only physical labor, it can also cultivate students' teamwork ability and sense of responsibility. For example, when learning to operate a seed drill or handling other agricultural work, students need to work together. This division of labor not only improves work efficiency, but also enhances class cohesion. Such activities not only allow students to learn how to take care of plants, but also improve their practical operation ability. When students are doing agricultural-related labor practices, they sometimes observe and learn to operate a seed drill. A seed drill is a planting machine that uses crop seeds as the sowing object. It is used to evenly distribute seeds in the soil for agricultural production. The seed drill can evenly spread seeds in the farmland. Traditional manual sowing is difficult to achieve uniform seed distribution. The seed drill uses mechanical devices, such as the sowing wheel structure of the centrifugal spreader, to evenly distribute seeds on the sowing plot, which is very important for crop growth. For the sowing of small seeds such as grains, vegetables, and forage, even distribution can ensure that each seed has enough growth space, avoid competing for nutrients, water, and sunlight due to too dense seeds, and prevent waste of land resources due to too sparse seeds.

[0003] A Chinese patent discloses a modular seeding machine feeding mechanism that is easy to disassemble and assemble (application number 202020076506.1). The patent technology is a modular seeding machine feeding mechanism that is easy to disassemble and assemble, which relates to the field of agricultural technology. It is to solve the problem that the feeding mechanism of the existing seeding machine is uneven due to the inaccurate feeding weight. A transmission rod is arranged inside the transmission box, a transmission bearing is arranged at one end of the transmission rod, a transmission meshing gear is arranged at the other end of the transmission rod, a driven wheel is arranged on the transmission rod, and a transmission belt is arranged on the driven wheel. A seed storage box is arranged on one side of the transmission box, a seed storage box shell is arranged on the seed storage box, a threaded connection ring is arranged at the lower end of the seed storage box shell, and a sowing box is arranged at the lower end of the threaded connection ring. A sowing disc is arranged inside the sowing box, and the sowing disc is meshed and connected with the transmission meshing gear, and a sowing disc meshing tooth is arranged on the outer side of the sowing disc.

[0004] However, the existing seed drill is not suitable for students' labor practice during use, and some seeds will stick to the corresponding sowing position during sowing due to the high humidity of some seeds, affecting the sowing effect. Therefore, those skilled in the art provide a portable seed drill for labor practice to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a portable seeder for use in labor practice to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A portable seeder for labor practice, comprising a metal mounting frame, a stainless steel support leg fixed to the bottom of the metal mounting frame, a stainless steel mounting frame fixed to the bottom of the stainless steel support leg, a self-locking universal wheel installed at the bottom of the stainless steel mounting frame, a cast iron mounting bracket fixed to the top of the metal mounting frame, a cast iron mounting handle fixed to the outside of the cast iron mounting bracket, a sowing feed hopper fixed to the top of the metal mounting frame, an auxiliary sowing installation mechanism installed on the top of the metal mounting frame, a cleaning and maintenance mechanism extending to the inside of the sowing feed hopper is arranged on the outside of the sowing feed hopper, and a sowing mechanism is arranged inside the sowing feed hopper;

[0008] The auxiliary sowing installation mechanism includes a motor fixing seat, a double-axis servo motor is fixed on the top of the motor fixing seat, a first output shaft is installed on one side of the double-axis servo motor, a first gear is fixed on the outer side of the first output shaft, a second gear is meshed on the outer side of the first gear, a third gear is meshed on the outer side of the second gear, a transmission connecting shaft passing through the other side of the third gear is fixed on one side, a second output shaft is installed on the side of the double-axis servo motor away from the first output shaft, a metal eccentric wheel is fixed on the outer side of the second output shaft, a fixed support block is fixed on the top of the metal mounting frame, a fixed limiting cast iron sleeve is fixed on one side of the fixed supporting block, a movable lifting frame passing through the bottom of the fixed limiting cast iron sleeve is movably inserted on the top of the fixed limiting cast iron sleeve, a metal impact rod is fixed on the bottom of the movable lifting frame, A roller mounting frame is fixed to one side of the movable lifting frame, and the outer side of the roller mounting frame is rotatably connected to two guide connecting rollers through a rotating shaft, and a metal connecting frame is fixed to the outer side of the sowing lower hopper. After starting the dual-axis servo motor, the dual-axis servo motor is a dual-axis motor, and the first output shaft and the second output shaft of the dual-axis servo motor rotate simultaneously, and the first output shaft can drive the first gear fixedly connected thereto to rotate, and the first gear drives the second gear meshing therewith to rotate, and the first output shaft can drive the first gear fixedly connected thereto to rotate, and the first gear drives the second gear meshing therewith to rotate, and the second gear is rotatably connected to the sowing feed hopper through the rotating shaft, and when the second gear rotates, it can drive the third gear meshing therewith to rotate, and the third gear drives the transmission connecting shaft fixedly connected thereto to rotate, and the transmission connecting shaft drives the sowing mechanism to rotate.

[0009] As a further solution of the present invention: the cleaning and maintenance mechanism includes a limiting metal sleeve, one side of the limiting metal sleeve is movably connected with a movable metal frame passing through the other side thereof, a plastic handle is fixed to the outside of the movable metal frame, carbon steel fixing plates are fixed on both sides of the limiting metal sleeve, a carbon steel threaded rod is fixed on the outside of the carbon steel fixing plate, a limiting mounting plate is fixed to one end of the carbon steel threaded rod, and movable wear-resistant plates are fixed on both sides of the movable metal frame. The plastic handle is pushed in the horizontal direction to drive the movable metal frame to move in the horizontal direction through the plastic handle. The movable metal frame can pass through the limiting metal sleeve, and the limiting metal sleeve plays a guiding role for the movable metal frame. When the movable metal frame moves, the outer movable wear-resistant plate moves on the outside of the carbon steel threaded rod, playing a limiting role, thereby avoiding the skewing of the movable metal frame.

[0010] As a further solution of the present invention: the outer side of each of the carbon steel threaded rods is threadedly connected with two positioning nuts, and the outer side of the positioning nuts is provided with anti-slip grooves.

[0011] As a further solution of the present invention: a through hole is provided inside the limiting metal sleeve, the size of the through hole is adapted to the size of the movable metal frame, and the limiting metal sleeve plays a role in guiding and limiting the movable metal frame.

[0012] As a further solution of the present invention: a cleaning brush is fixed at one end of the movable metal frame, and a through hole is opened inside the sowing feed hopper. The size of the through hole is adapted to the size of the movable metal frame, so that the movable metal frame can be inserted into the sowing feed hopper from the corresponding through hole.

[0013] As a further solution of the present invention: a plurality of sowing grooves are provided on the outer side of the sowing mechanism, and a through groove for accommodating the movable lifting frame and the metal eccentric wheel is provided inside the metal mounting frame.

[0014] As a further solution of the present invention: the corresponding surfaces of the guide connection roller and the metal eccentric wheel are in contact with each other, and the guide connection roller and the metal eccentric wheel are rollingly connected.

[0015] As a further solution of the present invention: the transmission connection shaft and the sowing mechanism are fixedly connected, and the transmission connection shaft and the sowing feed hopper are connected via a bearing.

[0016] As a further solution of the present invention: the metal mounting frame and the cast iron mounting bracket are fixed by bolts, and the outer side of the cast iron mounting handle is provided with anti-slip grooves.

[0017] As a further solution of the present invention: the number of the stainless steel support legs is specifically four, and the four stainless steel support legs are respectively fixed at the four corners of the bottom of the metal mounting frame; the number of the self-locking universal wheels is specifically four, and the four self-locking universal wheels are respectively installed at the four corners of the bottom of the stainless steel mounting frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This device is provided with an auxiliary sowing installation mechanism. When sowing, the user can hold the cast iron installation handle to push the metal installation frame to move, and can put the seeds to be sown into the sowing feed hopper. After starting the dual-axis servo motor, the transmission connecting shaft drives the sowing mechanism to rotate, and the seeds to be sown are put into the sowing feed hopper. As the sowing mechanism rotates, the corresponding seeds can be moved to the sowing slot preset by the sowing mechanism. As the sowing mechanism rotates, the seeds in the sowing slot can be put into the sowing lower hopper and fall to the ground to complete the sowing. The second output shaft on the outer side of the dual-axis servo motor can drive the sowing mechanism to rotate. The second output shaft rotates to allow the metal impact rod to intermittently impact the top of the metal connecting frame. The metal connecting frame is fixedly connected to the sowing hopper. When the metal connecting frame is slightly impacted, it drives the sowing hopper to vibrate slightly, assisting the seeds adhering to the inner wall of the sowing hopper to fall normally. This not only provides power for sowing, but also reduces the problem of seeds adhering to the inner wall of the sowing hopper, which is conducive to evenly spreading the seeds into the soil, helping to improve the accuracy and efficiency of sowing, and also conducive to the implementation of labor practice. Students who are doing labor practice can easily visually observe the mechanical mechanism of sowing, which is convenient for students' labor practice and understanding.

[0020] 2. The device is provided with a cleaning and maintenance mechanism. When the seeds to be sown are put into the sowing feed hopper and sown through the sowing mechanism, some seeds may be stuck in the sowing groove of the sowing mechanism. At this time, the operator can push the plastic handle horizontally, and the cleaning brush at one end of the mobile metal frame can be extended into the corresponding sowing groove of the sowing mechanism for auxiliary cleaning, so as to assist the seeds stuck in the sowing groove of the sowing mechanism to escape. After the cleaning brush is used, the position of the mobile metal frame and the cleaning brush can be easily locked to avoid the problem that the cleaning brush affects the normal sowing of the sowing mechanism. In the process of labor practice, it is convenient for students to clean the stuck seeds, and it also has high safety, which is conducive to the progress of labor practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereoscopic diagram of a portable seed drill used in labor practice;

[0022] Figure 2 It is a structural schematic diagram of a portable seed drill used in labor practice from another angle;

[0023] Figure 3 It is a schematic diagram of the outer part structure of an auxiliary sowing installation mechanism in a portable sowing machine used in labor practice;

[0024] Figure 4 The present invention is a schematic structural diagram from another angle of the outer part structure of the auxiliary sowing installation mechanism in a portable seeder used in labor practice.

[0025] Figure 5The present invention is a schematic diagram of the outer structure of an auxiliary sowing installation mechanism in a portable seeder used in labor practice.

[0026] Figure 6 The present invention is a schematic diagram of the structure of another pair of legs of an auxiliary sowing installation mechanism in a portable seeder used in labor practice.

[0027] Figure 7 A portable seed drill for labor practice Figure 4 Schematic diagram of the enlarged structure of area B.

[0028] Figure 8 The present invention is a schematic diagram of the outer structure of a metal eccentric wheel in a portable seed drill used in labor practice.

[0029] Fig. 9 A portable seed drill for labor practice Figure 1 Schematic diagram of the enlarged structure of area A.

[0030] Fig.10 The present invention is a schematic diagram of the outer structure of the bristles of a cleaning brush in a portable seed drill used in labor practice.

[0031] In the figure: 1. Metal mounting frame; 2. Stainless steel support legs; 3. Stainless steel mounting frame; 4. Self-locking universal wheels; 5. Cast iron mounting bracket; 6. Cast iron mounting handle; 7. Feed hopper for sowing; 8. Auxiliary sowing mounting mechanism; 81. Motor fixing seat; 82. Dual-axis servo motor; 83. First output shaft; 84. First gear; 85. Second gear; 86. Transmission connecting shaft; 87. Third gear; 88. Second output shaft; 89. Metal eccentric wheel; 810. Fixed support block; 8 11. Fixed limit cast iron sleeve; 812. Movable lifting frame; 813. Metal impact rod; 814. Metal connecting frame; 815. Roller mounting frame; 816. Guide connecting roller; 9. Cleaning and maintenance mechanism; 91. Limit metal sleeve; 92. Movable metal frame; 93. Plastic handle; 94. Carbon steel fixing plate; 95. Carbon steel threaded rod; 96. Limit mounting plate; 97. Movable wear-resistant plate; 98. Positioning nut; 99. Brush for cleaning; 10. Sowing mechanism; 11. Sowing hopper. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-10In the embodiment of the present invention, a portable seeder for labor practice includes a metal mounting frame 1, a stainless steel support leg 2 is fixed to the bottom of the metal mounting frame 1, a stainless steel mounting frame 3 is fixed to the bottom of the stainless steel support leg 2, a self-locking universal wheel 4 is installed at the bottom of the stainless steel mounting frame 3, a cast iron mounting bracket 5 is fixed to the top of the metal mounting frame 1, a cast iron mounting handle 6 is fixed to the outside of the cast iron mounting bracket 5, a sowing feed hopper 7 is fixed to the top of the metal mounting frame 1, an auxiliary sowing installation mechanism 8 is installed on the top of the metal mounting frame 1, a cleaning and maintenance mechanism 9 extending to the inside of the sowing feed hopper 7 is arranged on the outside of the sowing feed hopper 7, and a sowing mechanism 10 is arranged inside the sowing feed hopper 7;

[0034] The auxiliary seeding installation mechanism 8 includes a motor fixing seat 81, a double-axis servo motor 82 is fixed on the top of the motor fixing seat 81, a first output shaft 83 is installed on one side of the double-axis servo motor 82, a first gear 84 is fixed on the outer side of the first output shaft 83, a second gear 85 is meshed on the outer side of the first gear 84, a third gear 87 is meshed on the outer side of the second gear 85, a transmission connecting shaft 86 running through the other side of the third gear 87 is fixed on one side of the third gear 87, a second output shaft 88 is installed on the side of the double-axis servo motor 82 away from the first output shaft 83, after starting the double-axis servo motor 82, the double-axis servo motor 82 is a double-axis motor, the first output shaft 83 and the second output shaft 88 of the double-axis servo motor 82 rotate simultaneously, and at this time the first output shaft 83 can drive the transmission connecting shaft 86 running through the other side thereof. The fixedly connected first gear 84 rotates, allowing the first gear 84 to drive the second gear 85 meshing therewith to rotate. The second gear 85 is rotatably connected to the sowing feed hopper 7 through a rotating shaft. When the second gear 85 rotates, it can drive the third gear 87 meshing therewith to rotate. At this time, the third gear 87 drives the transmission connecting shaft 86 fixedly connected thereto to rotate, allowing the transmission connecting shaft 86 to drive the sowing mechanism 10 to rotate. A metal eccentric wheel 89 is fixed to the outside of the second output shaft 88. A fixed support block 810 is fixed to the top of the metal mounting frame 1. A fixed limiting cast iron sleeve 811 is fixed to one side of the fixed support block 810. A movable lifting frame 812 that runs through the bottom of the fixed limiting cast iron sleeve 811 is movably inserted at the top. A metal lifting frame 812 is fixed to the bottom. The impact rod 813 is a collision rod 813, and a roller mounting frame 815 is fixed on one side of the movable lifting frame 812. The outer side of the roller mounting frame 815 is rotatably connected to two guide connecting rollers 816 through a rotating shaft. A metal connecting frame 814 is fixed to the outer side of the sowing lower hopper 11. The second output shaft 88 is an eccentric wheel. Therefore, when the second output shaft 88 rotates, the roller mounting frame 815 can be reciprocated in the vertical direction. At this time, the two guide connecting rollers 816 on the outer side of the roller mounting frame 815 are rollingly connected to the second output shaft 88. As the roller mounting frame 815 reciprocates in the vertical direction, the movable lifting frame 812 fixedly connected thereto can be driven to reciprocate in the vertical direction. When the movable lifting frame 812 is active, it is guided and limited by the fixed limiting cast iron sleeve 811 to avoid The movable lifting frame 812 is skewed or falls off. A plurality of sowing grooves are provided on the outer side of the sowing mechanism 10. A through groove is provided inside the metal mounting frame 1 to accommodate the movable lifting frame 812 and the metal eccentric wheel 89. The corresponding surfaces of the guide connecting roller 816 and the metal eccentric wheel 89 are fitted. The guide connecting roller 816 and the metal eccentric wheel 89 are rollingly connected. The transmission connecting shaft 86 and the sowing mechanism 10 are fixedly connected. The transmission connecting shaft 86 and the sowing feed hopper 7 are connected through bearings. The metal mounting frame 1 and the cast iron mounting bracket 5 are fixed by bolts. The outer side of the cast iron mounting handle 6 is provided with anti-slip grooves. The number of stainless steel support legs 2 is specifically four, and the four stainless steel support legs 2 are respectively fixed at the four corners of the bottom of the metal mounting frame 1.The number of self-locking universal wheels 4 is four, and the four self-locking universal wheels 4 are respectively installed at the four corners of the bottom of the stainless steel mounting frame 3. When sowing, the user can hold the cast iron mounting handle 6 to push the metal mounting frame 1 to move, and can put the seeds to be sown into the sowing feed hopper 7. After starting the double-axis servo motor 82, the double-axis servo motor 82 is a double-axis motor, and the first output shaft 83 and the second output shaft 88 of the double-axis servo motor 82 rotate at the same time. At this time, the first output shaft 83 can drive the first gear 84 fixedly connected thereto to rotate, and the first gear 84 drives the second gear 85 meshing therewith to rotate, and the second gear 85 is connected to the second gear 85 through the rotating shaft. The sowing feed hopper 7 is rotatably connected. When the second gear 85 rotates, it can drive the third gear 87 meshing with it to rotate. At this time, the third gear 87 drives the transmission connection shaft 86 fixedly connected to it to rotate, so that the transmission connection shaft 86 drives the sowing mechanism 10 to rotate. The seeds to be sown are placed in the sowing feed hopper 7. As the sowing mechanism 10 rotates, the corresponding seeds can be moved to the sowing groove preset in the sowing mechanism 10. As the sowing mechanism 10 rotates, the seeds in the sowing groove can be put into the sowing hopper 11 and fall to the ground to complete the sowing. The second output shaft 88 on the outer side of the dual-axis servo motor 82 can drive the second output shaft 88 to rotate when it rotates. The output shaft 88 rotates, and the second output shaft 88 is an eccentric wheel. Therefore, when the second output shaft 88 rotates, the roller mounting frame 815 can be reciprocated in the vertical direction. At this time, the two guide connecting rollers 816 on the outer side of the roller mounting frame 815 are rollingly connected with the second output shaft 88. As the roller mounting frame 815 reciprocates in the vertical direction, the movable lifting frame 812 fixedly connected thereto can be driven to reciprocate in the vertical direction. When the movable lifting frame 812 is active, it is guided and limited by the fixed limiting cast iron sleeve 811 to prevent the movable lifting frame 812 from being skewed or falling off. When the movable lifting frame 812 reciprocates in the vertical direction, it drives The metal impact rod 813 moves at the same time, allowing the metal impact rod 813 to intermittently impact the top of the metal connecting frame 814. The metal connecting frame 814 is fixedly connected to the sowing lower hopper 11. When the metal connecting frame 814 is slightly impacted, it drives the sowing lower hopper 11 to vibrate slightly, assisting the seeds adhering to the inner wall of the sowing lower hopper 11 to fall normally, reducing the problem of seeds adhering to the inner wall of the sowing lower hopper 11, which is conducive to uniformly spreading the seeds into the soil, helping to improve the accuracy and efficiency of sowing, and also conducive to the implementation of labor practice. Students who are doing labor practice can easily visually observe the mechanical mechanism of sowing, which is convenient for students' labor practice and understanding.

[0035] As an embodiment of the present invention, the cleaning and maintenance mechanism 9 includes a limiting metal sleeve 91, one side of the limiting metal sleeve 91 is movably connected with a movable metal frame 92 that runs through the other side thereof, a plastic handle 93 is fixed to the outside of the movable metal frame 92, both sides of the limiting metal sleeve 91 are fixed with a carbon steel fixing plate 94, the outside of the carbon steel fixing plate 94 is fixed with a carbon steel threaded rod 95, one end of the carbon steel threaded rod 95 is fixed with a limiting mounting plate 96, both sides of the movable metal frame 92 are fixed with a movable wear-resistant plate 97, and the outer side of each carbon steel threaded rod 95 is fixed with a carbon steel threaded rod 95. The sides are both threadedly connected with two positioning nuts 98, and the outer side of the positioning nuts 98 is provided with anti-slip grooves. A through hole is provided inside the limiting metal sleeve 91, and the size of the through hole is adapted to the size of the movable metal frame 92. A cleaning brush 99 is fixed to one end of the movable metal frame 92. A through hole is provided inside the sowing feed hopper 7, and the size of the through hole is adapted to the size of the movable metal frame 92. When the sowing feed hopper 7 is filled with seeds to be sown and sown through the sowing mechanism 10, some seeds may be stuck in the sowing of the sowing mechanism 10. The operator can push the plastic handle 93 in the horizontal direction to drive the movable metal frame 92 to move in the horizontal direction through the plastic handle 93. The movable metal frame 92 can penetrate the limiting metal sleeve 91. The limiting metal sleeve 91 guides the movable metal frame 92. The cleaning bristles 99 at one end of the movable metal frame 92 can be extended into the corresponding sowing groove of the sowing mechanism 10 for auxiliary cleaning, so as to assist the sowing mechanism 10 in removing the stuck seeds in the sowing groove. Moreover, when the movable metal frame 92 moves, the movable wear-resistant plate 97 on the outer side of the carbon steel The outer side of the threaded rod 95 moves, which plays a limiting role and can avoid the skewing of the movable metal frame 92. After the cleaning brush 99 is used, the positioning nut 98 on the outer side of the carbon steel threaded rod 95 can be rotated to make the corresponding surface of the positioning nut 98 fit with the outer side of the movable wear-resistant plate 97, so as to complete the locking of the position of the movable metal frame 92 and the cleaning brush 99, and avoid the problem that the cleaning brush 99 affects the normal sowing of the sowing mechanism 10. In the process of labor practice, it is convenient for students to clean the stuck seeds, and it also has high safety.

[0036] The working principle of the present invention is as follows: the device is provided with an auxiliary sowing installation mechanism 8. When sowing, the user can hold the cast iron installation handle 6 to push the metal installation frame 1 to move, and can put the seeds to be sown into the sowing feed hopper 7. After starting the double-axis servo motor 82, the double-axis servo motor 82 is a double-axis motor. The first output shaft 83 and the second output shaft 88 of the double-axis servo motor 82 rotate at the same time. At this time, the first output shaft 83 can drive the first gear 84 fixedly connected thereto to rotate, and the first gear 84 drives the second gear 85 meshing therewith to rotate. The second gear 85 is rotationally connected to the sowing feed hopper 7 through the rotating shaft. When When the second gear 85 rotates, it can drive the third gear 87 meshing with it to rotate. At this time, the third gear 87 drives the transmission connecting shaft 86 fixedly connected to it to rotate, so that the transmission connecting shaft 86 drives the sowing mechanism 10 to rotate. The seeds to be sown are placed in the sowing feed hopper 7. As the sowing mechanism 10 rotates, the corresponding seeds can be moved to the sowing groove preset in the sowing mechanism 10. As the sowing mechanism 10 rotates, the seeds in the sowing groove can be put into the sowing lower hopper 11 and fall to the ground to complete the sowing. The second output shaft 88 on the outer side of the dual-axis servo motor 82 can drive the second output shaft 88 to rotate when it rotates. The second output shaft 88 is an eccentric wheel, so when the second output shaft 88 rotates, the roller mounting frame 815 can be reciprocated in the vertical direction. At this time, the two guide connecting rollers 816 on the outer side of the roller mounting frame 815 are rollingly connected to the second output shaft 88. As the roller mounting frame 815 reciprocates in the vertical direction, the movable lifting frame 812 fixedly connected thereto can be driven to reciprocate in the vertical direction. When the movable lifting frame 812 is active, it is guided and limited by the fixed limiting cast iron sleeve 811 to prevent the movable lifting frame 812 from being skewed or falling off. When the movable lifting frame 812 reciprocates in the vertical direction, it drives the metal to collide The rods 813 move at the same time, so that the metal impact rod 813 intermittently impacts the top of the metal connecting frame 814, and the metal connecting frame 814 is fixedly connected to the sowing lower hopper 11. When the metal connecting frame 814 is slightly impacted, it drives the sowing lower hopper 11 to vibrate slightly, and assists the seeds adhering to the inner wall of the sowing lower hopper 11 to fall normally, reducing the problem of seeds adhering to the inner wall of the sowing lower hopper 11, which is conducive to uniformly spreading the seeds into the soil, helping to improve the accuracy and efficiency of sowing, and also conducive to the implementation of labor practice. Students who are doing labor practice can conveniently visually observe the mechanical mechanism of sowing, which is convenient for students' labor practice and understanding;The device is provided with a cleaning and maintenance mechanism 9. When the seeds to be sown are put into the sowing feed hopper 7 and the seeds are sown through the sowing mechanism 10, some seeds may be stuck in the sowing groove of the sowing mechanism 10. At this time, the operator can push the plastic handle 93 horizontally to drive the movable metal frame 92 to move horizontally through the plastic handle 93. The movable metal frame 92 can penetrate the limiting metal sleeve 91, and the limiting metal sleeve 91 plays a role in guiding the movable metal frame 92. The cleaning bristles 99 at one end of the movable metal frame 92 can be extended into the corresponding sowing groove of the sowing mechanism 10 for auxiliary cleaning, so as to help the seeds stuck in the sowing groove of the sowing mechanism 10 to escape. , and when the movable metal frame 92 moves, the movable wear-resistant plate 97 on the outside thereof moves on the outside of the carbon steel threaded rod 95, playing a limiting role, which can prevent the movable metal frame 92 from being skewed. After the cleaning bristles 99 are used, the positioning nut 98 on the outside of the carbon steel threaded rod 95 can be rotated to make the corresponding surface of the positioning nut 98 fit with the outside of the movable wear-resistant plate 97, so as to complete the locking of the position of the movable metal frame 92 and the cleaning bristles 99, and avoid the problem that the cleaning bristles 99 affect the normal sowing of the sowing mechanism 10. In the process of labor practice, it is convenient for students to clean the stuck seeds, and it also has high safety, which is conducive to the implementation of labor practice. ;

[0037] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable seed drill for labor practice, comprising a metal mounting frame (1), characterized in that: A stainless steel support leg (2) is fixed to the bottom of the metal mounting frame (1), a stainless steel mounting frame (3) is fixed to the bottom of the stainless steel support leg (2), a self-locking universal wheel (4) is installed at the bottom of the stainless steel mounting frame (3), a cast iron mounting bracket (5) is fixed to the top of the metal mounting frame (1), a cast iron mounting handle (6) is fixed to the outside of the cast iron mounting bracket (5), a sowing feed hopper (7) is fixed to the top of the metal mounting frame (1), an auxiliary sowing installation mechanism (8) is installed on the top of the metal mounting frame (1), a cleaning and maintenance mechanism (9) extending to the inside of the sowing feed hopper (7) is arranged on the outside of the sowing feed hopper (7), and a sowing mechanism (10) is arranged inside the sowing feed hopper (7); The auxiliary sowing installation mechanism (8) comprises a motor fixing seat (81), a double-axis servo motor (82) is fixed on the top of the motor fixing seat (81), a first output shaft (83) is installed on one side of the double-axis servo motor (82), a first gear (84) is fixed on the outer side of the first output shaft (83), a second gear (85) is meshed on the outer side of the first gear (84), a third gear (87) is meshed on the outer side of the second gear (85), a transmission connection shaft (86) passing through the other side of the third gear (87) is fixed on one side of the third gear (87), a second output shaft (88) is installed on the side of the double-axis servo motor (82) away from the first output shaft (83), and the second output shaft (88) A metal eccentric wheel (89) is fixed on the outside of the metal mounting frame (1), a fixed support block (810) is fixed on the top of the metal mounting frame (1), a fixed limiting cast iron sleeve (811) is fixed on one side of the fixed supporting block (810), a movable lifting frame (812) penetrating the bottom of the fixed limiting cast iron sleeve (811) is movably inserted on the top of the fixed limiting cast iron sleeve (811), a metal impact rod (813) is fixed on the bottom of the movable lifting frame (812), a roller mounting frame (815) is fixed on one side of the movable lifting frame (812), the outer side of the roller mounting frame (815) is rotatably connected to two guide connecting rollers (816) via a rotating shaft, and a metal connecting frame (814) is fixed on the outer side of the sowing lower hopper (11).

2. A portable seeder for labor practice according to claim 1, characterized in that: The cleaning and maintenance mechanism (9) comprises a limiting metal sleeve (91), one side of the limiting metal sleeve (91) is movably connected with a movable metal frame (92) penetrating the other side thereof, a plastic handle (93) is fixed to the outer side of the movable metal frame (92), both sides of the limiting metal sleeve (91) are fixed with carbon steel fixing plates (94), the outer side of the carbon steel fixing plates (94) is fixed with a carbon steel threaded rod (95), one end of the carbon steel threaded rod (95) is fixed with a limiting mounting plate (96), and both sides of the movable metal frame (92) are fixed with movable wear-resistant plates (97).

3. A portable seeder for labor practice according to claim 2, characterized in that: The outer side of each carbon steel threaded rod (95) is threadedly connected to two positioning nuts (98), and the outer side of the positioning nuts (98) is provided with anti-slip grooves.

4. A portable seeder for labor practice according to claim 2, characterized in that: A through hole is provided inside the limiting metal sleeve (91), and the size of the through hole matches the size of the movable metal frame (92).

5. A portable seeder for labor practice according to claim 2, characterized in that: A cleaning brush (99) is fixed to one end of the movable metal frame (92), and a through hole is provided inside the sowing feed hopper (7), the size of which is adapted to the size of the movable metal frame (92).

6. A portable seeder for labor practice according to claim 1, characterized in that: The outer side of the sowing mechanism (10) is provided with a plurality of sowing grooves, and the inner side of the metal mounting frame (1) is provided with a through groove for accommodating the movement of the movable lifting frame (812) and the metal eccentric wheel (89).

7. A portable seeder for labor practice according to claim 1, characterized in that: The corresponding surfaces of the guide connection roller (816) and the metal eccentric wheel (89) are in contact with each other, and the guide connection roller (816) and the metal eccentric wheel (89) are connected in a rolling manner.

8. A portable seeder for labor practice according to claim 1, characterized in that: The transmission connection shaft (86) and the sowing mechanism (10) are fixedly connected, and the transmission connection shaft (86) and the sowing feed hopper (7) are connected via a bearing.

9. A portable seeder for labor practice according to claim 1, characterized in that: The metal mounting frame (1) and the cast iron mounting bracket (5) are fixed by bolts, and the outer side of the cast iron mounting handle (6) is provided with anti-slip grooves.

10. A portable seeder for labor practice according to claim 1, characterized in that: The number of the stainless steel support legs (2) is specifically four, and the four stainless steel support legs (2) are respectively fixed at the four corners of the bottom of the metal mounting frame (1); the number of the self-locking universal wheels (4) is specifically four, and the four self-locking universal wheels (4) are respectively installed at the four corners of the bottom of the stainless steel mounting frame (3).

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