Quantitative seeding equipment for rice planting

Abstract

The invention is applicable to the technical field of rice seedling raising, and provides quantitative seeding equipment for rice planting, the quantitative seeding equipment comprises a base plate, a supporting circular plate and a seed box, and the supporting circular plate is rotatably mounted on the base plate and is used for adjusting according to the advancing direction. According to the quantitative seeding equipment for rice planting, by arranging the rotatable supporting circular plate and the positioning pin, the direction of the equipment can be flexibly adjusted according to the advancing direction of a seedbed, fixation is firm, operation is easy and convenient, and the problem that complex turning operation is needed when existing seeding equipment is transferred between seedbeds is effectively solved; seeds can be quantitatively discharged through the seed groove in the discharging wheel shaft, the sowing uniformity is guaranteed, a mud pushing plate and a seed pressing plate are arranged, soil is bulldozed before sowing, the seeds make close contact with the soil after sowing, the sowing effect is further improved, manual operation is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of rice seedling raising, and particularly relates to a quantitative seeding device for rice planting. Background Art

[0002] In the process of rice seedling raising, usually, workers manually arrange multiple ridges of seedbeds in the paddy field. There are gaps between each ridge of seedbed for people to walk and for water supply and drainage. The width of the seedbed is usually 15 meters. Before sowing, workers place the seedling plates manually, then pour thin mud on the seedling plates, level the thin mud uniformly, scatter the seeds, and finally gently press with a wooden board to make the seeds closely contact the soil, and then cover with straw or a straw curtain or seal with a film.

[0003] In the above operations, currently, most people use the method of manual hand - scattering to scatter the seeds. The scattering is laborious and uneven. After scattering, manual pressing of the seeds with a wooden board is also required, resulting in low operation efficiency. Although there are some seeding devices currently, due to the small gaps between the seedbeds, after completing the seeding of one seedbed, when workers lift the device and transfer it to the position of another seedbed, a complex turning is required to ensure the correct traveling direction. Summary of the Invention

[0004] The present invention provides a quantitative seeding device for rice planting, aiming to solve the problems raised in the above - mentioned background art, namely, the poor uniformity of currently using manual scattering of seeds, low operation efficiency of manual pressing of seeds with a wooden board, and the trouble of device turning.

[0005] To solve the above problems, the present invention is implemented as follows. A quantitative seeding device for rice planting includes: a base plate, a supporting circular plate, and a seed box. The supporting circular plate is rotatably installed on the base plate for adjusting according to the traveling direction. A positioning pin is inserted between the supporting circular plate and the base plate to fix the direction of the supporting circular plate on the base plate. The seed box is fixedly embedded on the supporting circular plate. The top of the seed box is open, and the bottom has a feeding port. A feeding shaft is rotatably installed in the feeding port. A feeding wheel shaft is fixedly sleeved on the feeding shaft. A plurality of seed grooves are formed on the feeding wheel shaft. As the feeding shaft and the feeding wheel shaft rotate, the seeds in the seed grooves are discharged from the feeding port to the seedbed on the ground. A mud pushing plate and a seed pressing plate are respectively arranged on both sides of the feeding port. The mud pushing plate is liftably installed at the bottom of the seed box. The seed pressing plate is arranged at the bottom of the supporting circular plate by a reciprocating seed pressing mechanism and reciprocates up and down during use to gently pat the seeds and the soil surface of the seedbed, so that the seeds are in close contact with the soil. The mud pushing plate is located at the front side of the travel for leveling the soil surface of the seedbed. The seed pressing plate is located at the rear side of the travel. The installation heights of both the mud pushing plate and the seed pressing plate are lower than the height of the feeding port. The installation height of the mud pushing plate is slightly higher than the lowest height of the seed pressing plate. A feeding motor is fixedly installed at the bottom of the seed box to drive the rotation of the feeding shaft and drive the reciprocating seed pressing mechanism to move, so that the seed pressing plate reciprocates up and down. Support legs are arranged at the four corners of the base plate. Paddy field wheels are rotatably installed on all four support legs. The lengths of the feeding port and the feeding wheel shaft are both the same as the width of the seedbed. The spacing between the paddy field wheels is greater than the width of the paddy field for moving along the groove between adjacent seedbeds.

[0006] Preferably, the support legs are slidably and penetratingly installed on the base plate. The same cross beam is fixedly installed on the two support legs on the same travel side. Lifting electric telescopic rods are fixedly installed on both sides of the base plate. The output rods of the two lifting electric telescopic rods are respectively fixedly connected to the two cross beams for adjusting the distance between the base plate and the ground.

[0007] Preferably, walking motors are fixedly installed on the two support legs on the same travel side. Walking sprockets are fixedly installed on the output shafts of the two walking motors and the wheel shafts of the corresponding two paddy field wheels. The same walking chain is sleeved on the corresponding two walking sprockets. A main control box is fixedly installed on one side of the base plate for controlling the operation of the two walking motors.

[0008] Preferably, a support plate fixedly connected to the seed box is arranged above the mud pushing plate. A hoisting rod is slidably installed on the support plate. The bottom end of the hoisting rod is fixedly connected to the top of the mud pushing plate. A height fixing bolt is threadedly installed on the support plate. The end of the height fixing bolt abuts against the hoisting rod for adjusting the height of the mud pushing plate and the height difference from the seed pressing plate.

[0009] Preferably, the reciprocating seed pressing mechanism includes a U-shaped bracket disposed above the seed pressing plate and fixedly connected to the bottom of the supporting circular plate. A camshaft is rotatably installed on the U-shaped bracket, and a pressing cam is fixedly sleeved on the camshaft. A rectangular rod is slidably installed at the bottom of the U-shaped bracket. The bottom end of the rectangular rod is fixedly connected to the top of the seed pressing plate, and a contact plate is fixedly installed at the top end of the rectangular rod. The upper surface of the contact plate is in contact with the outer edge of the pressing cam. A return spring is fixedly installed on the inner wall of the bottom of the U-shaped bracket, and the top end of the return spring is fixedly connected to the bottom of the contact plate.

[0010] Preferably, a power main shaft is rotatably installed in the seed box. A chain disc is fixedly sleeved on the camshaft, and blanking sprockets are fixedly sleeved on the blanking shaft, the output shaft of the blanking motor, and the power main shaft. The same blanking chain is sleeved on the three blanking sprockets and the chain disc, so that the blanking motor drives the blanking shaft, the power main shaft, and the camshaft to rotate synchronously.

[0011] Preferably, a distribution box and a sub-control box are fixedly installed on the seed box for controlling the operation of the blanking motor.

[0012] Preferably, a hoisting frame fixedly installed on the seed box is provided between the blanking port and the seed pressing plate. An identification camera is fixedly installed on the hoisting frame for identifying the sowing distribution of seeds on the seedbed, thereby controlling the rotation speed of the blanking motor. The identification camera is connected to the sub-control box.

[0013] Preferably, a circular rotating groove is formed on the base plate, and the supporting circular plate is rotatably installed at the circular rotating groove. The supporting circular plate has a rim, the diameter of the rim is greater than the diameter of the circular rotating groove, the rim is lapped on the top of the base plate. At least two positioning pins are provided and are arranged oppositely at 180°. Positioning holes are provided at the positions of the positioning pins corresponding to the base plate and the rim of the supporting circular plate. The rotation adjustment angle of the supporting circular plate is 180° for realizing a U-turn in different traveling directions.

[0014] Preferably, the advancing sides of the mud pushing plate and the seed pressing plate are both tilted upward, and the bottoms of the mud pushing plate and the seed pressing plate are both flat surfaces.

[0015] Compared with the related art, the quantitative sowing device for rice planting provided by the present invention has the following beneficial effects: Compared with the prior art, the quantitative seeding device for rice planting provided by this solution can flexibly adjust the direction of the device according to the traveling direction of the seedbed by setting a rotatable support circular plate and positioning pins, and it is firmly fixed, easy to operate, effectively solving the problem of the complex turning operation required by the existing seeding devices when transferring between seedbeds. The seed slots on the seed discharging wheel shaft can achieve the quantitative discharge of seeds, ensuring the uniformity of seeding. The settings of the soil pushing plate and the seed pressing plate level the soil before seeding and make the seeds closely contact with the soil after seeding respectively, further improving the seeding effect, reducing manual operation, and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 6 is a top perspective structural schematic diagram of a quantitative seeding device for rice planting provided by the present invention; Figure 2 is Figure 1 a top perspective structural schematic diagram of the other side of the part shown in FIG. 6; Figure 3 is Figure 2 an enlarged structural schematic diagram of part A shown in FIG. 6; Figure 4 is Figure 2 an enlarged structural schematic diagram of part B shown in FIG. 6; Figure 5 is Figure 2 an enlarged structural schematic diagram of part C shown in FIG. 6; Figure 6 FIG. 29 is a front sectional structural schematic diagram of a quantitative seeding device for rice planting provided by the present invention; Figure 7 is Figure 6 an enlarged structural schematic diagram of part D shown in FIG. 29; Figure 8 is Figure 6 an enlarged structural schematic diagram of part E shown in FIG. 29; Figure 9 is Figure 6 an enlarged structural schematic diagram of part F shown in FIG. 29; Figure 10 FIG. 47 is a top perspective structural schematic diagram of the support circular plate in the present invention; Figure 11 FIG. 50 is a bottom perspective structural schematic diagram of the support circular plate, seed box, soil pushing plate, seed pressing plate, seed discharging motor, and reciprocating seed pressing mechanism part in the present invention; Figure 12 is Figure 11 a bottom perspective structural schematic diagram of the other side of the part shown in FIG. 50; Figure 13 is Figure 12 an enlarged structural schematic diagram of part G shown in FIG. 50; Figure 14Schematic diagram of the transmission structure of the power spindle and the material dispersion shaft in the present invention; Figure 15 Bottom view three-dimensional structure schematic diagram of the equipment ridge-changing mechanism in the present invention.

[0017] Reference numerals: 1, base plate; 2, support circular plate; 3, seed box; 4, feeding port; 5, feeding shaft; 6, feeding wheel shaft; 7, seed groove; 8, mud pushing plate; 9, seed pressing plate; 10, feeding motor; 11, support leg; 12, paddy field wheel; 13, cross beam; 14, lifting electric telescopic rod; 15, traveling motor; 16, traveling sprocket; 17, traveling chain; 18, main control box; 19, support plate; 20, lifting rod; 21, fixed height bolt; 22, U-shaped bracket; 23, camshaft; 24, pressing cam; 25, rectangular rod; 26, contact plate; 27, return spring; 28, power spindle; 29, chain disc; 30, feeding sprocket; 31, feeding chain; 32, distribution box; 33, sub-control box; 34, lifting frame; 35, identification camera; 36, material dispersion shaft; 37, material dispersion rod; 38, active dialing block; 39, driven block; 40, support arm plate; 41, mounting seat; 42, compression spring; 43, limit block; 44, storage square tube; 45, assembly plate; 46, extension plate; 47, synchronous connection plate; 48, first plug board; 49, second plug board; 50, ground-touching anti-tipping sleeve plate; 51, moving block; 52, lifting screw rod; 53, synchronous sprocket; 54, synchronous chain; 55, motor frame; 56, lifting motor; 57, lifting sprocket; 58, lifting chain; 59, shaft seat; 60, spline barrel; 61, spline shaft; 62, bevel gear; 63, protective baffle; 64, positioning pin. Detailed implementation manners

[0018] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0019] An embodiment of the present invention provides a quantitative seeding device for rice planting, as Figure 1-15As shown in the figure, the quantitative seeding device for rice planting includes: a base plate 1, a supporting circular plate 2, and a seed box 3. The supporting circular plate 2 is rotatably installed on the base plate 1 for adjusting according to the traveling direction. A positioning pin 64 is inserted into the supporting circular plate 2 and the base plate 1 to fix the direction of the supporting circular plate 2 on the base plate 1. The seed box 3 is fixedly embedded on the supporting circular plate 2. The top of the seed box 3 is open, and the bottom has a feeding port 4. A feeding shaft 5 is rotatably installed in the feeding port 4. A feeding wheel shaft 6 is fixedly sleeved on the feeding shaft 5. A plurality of seed grooves 7 are formed on the feeding wheel shaft 6. As the feeding shaft 5 and the feeding wheel shaft 6 rotate, the seeds in the seed grooves 7 are discharged from the feeding port 4 to the seedbed on the ground. On both sides of the feeding port 4, there are respectively a mud pushing plate 8 and a seed pressing plate 9. The mud pushing plate 8 is liftably installed at the bottom of the seed box 3. The seed pressing plate 9 is arranged at the bottom of the supporting circular plate 2 by a reciprocating seed pressing mechanism, and moves up and down reciprocally during use to gently pat the seeds and the soil surface of the seedbed, so that the seeds are in close contact with the soil. The mud pushing plate 8 is located at the front side of the traveling direction and is used to level the soil surface of the seedbed. The seed pressing plate 9 is located at the rear side of the traveling direction. The installation heights of both the mud pushing plate 8 and the seed pressing plate 9 are lower than the height of the feeding port 4. The installation height of the mud pushing plate 8 is slightly higher than the lowest height of the seed pressing plate 9. A feeding motor 10 is fixedly installed at the bottom of the seed box 3 to drive the feeding shaft 5 to rotate and drive the reciprocating seed pressing mechanism to move, so that the seed pressing plate 9 moves up and down reciprocally. Four supporting legs 11 are arranged at the four corners of the base plate 1. Paddy field wheels 12 are rotatably installed on the four supporting legs 11. The lengths of both the feeding port 4 and the feeding wheel shaft 6 are the same as the width of the seedbed. The spacing between the paddy field wheels 12 is greater than the width of the paddy field for moving along the groove between adjacent seedbeds.

[0020] In this embodiment, when using the quantitative seeding device for rice planting, first place the device at the starting position of the seedbed, ensure that the paddy field wheels 12 are located in the groove between adjacent seedbeds to ensure the stable movement of the device. Then, according to the traveling direction of the seedbed, rotate the supporting circular plate 2 to adjust its direction on the base plate 1 so that the feeding port 4 is aligned with the seedbed, and then insert the positioning pin 64 to fix the direction of the supporting circular plate 2. Start the feeding motor 10 to drive the feeding shaft 5 and the feeding wheel shaft 6 to rotate. The seeds enter the seed grooves 7 from the feeding port 4 of the seed box 3 and are discharged to the seedbed on the ground as the feeding wheel shaft 6 rotates. During the seeding process, the mud pushing plate 8 is located at the front side of the traveling direction and first levels the soil surface of the seedbed to create good conditions for seeding. The seed pressing plate 9 is located at the rear side of the traveling direction and moves up and down reciprocally through the reciprocating seed pressing mechanism to gently pat the seeds and the soil surface of the seedbed, so that the seeds are in close contact with the soil to ensure the seeding effect. When the seeding of one seedbed is completed, pull out the positioning pin 64, rotate the supporting circular plate 2 to adjust the direction to the next seedbed, insert the positioning pin 64 again, and continue the seeding operation.

[0021] This quantitative seeding device for rice planting has a variety of remarkable beneficial effects. First, by setting the rotatable support circular plate 2 and the positioning pin 64, the direction of the device can be flexibly adjusted according to the traveling direction of the seedbed, and it is firmly fixed, easy to operate, effectively solving the problem of the complex turning operation required by the existing seeding devices when transferring between seedbeds. Second, the seed slots 7 on the seed discharging wheel shaft 6 can achieve the quantitative discharge of seeds, ensuring the uniformity of seeding and improving the seeding quality. In addition, the setting of the soil pushing plate 8 and the seed pressing plate 9 respectively levels the soil before seeding and makes the seeds closely contact with the soil after seeding, further improving the seeding effect, reducing manual operation, and improving the operation efficiency.

[0022] Through its unique structural design and function realization, this quantitative seeding device for rice planting provides an efficient, accurate and convenient solution for rice seeding. It not only improves the seeding efficiency and quality, but also reduces the labor intensity of farmers, having important practical application value and broad market prospects.

[0023] In a further preferred embodiment of the present invention, the support legs 11 are slidably and penetratingly installed on the base plate 1. A same cross beam 13 is fixedly installed on two support legs 11 located on the same traveling side. Lifting electric telescopic rods 14 are fixedly installed on both sides of the base plate 1. The output rods of the two lifting electric telescopic rods 14 are respectively fixedly connected to the two cross beams 13, for adjusting the ground clearance of the base plate 1.

[0024] In this embodiment, the support legs 11 of this quantitative seeding device for rice planting are slidably and penetratingly installed on the base plate 1, and two support legs 11 located on the same traveling side are connected by the cross beam 13. The output rods of the lifting electric telescopic rods 14 on both sides of the base plate 1 are fixedly connected to the cross beam 13. When in use, according to the actual depth of the paddy field and the height of the seedbed, by controlling the telescopic movement of the lifting electric telescopic rods 14, the cross beam 13 is driven to move, and then the height of the support legs 11 is adjusted, so as to realize the adjustment of the ground clearance of the base plate 1, enabling the device to adapt to paddy field environments with different depths, ensuring the stable operation of the device during seeding, and at the same time ensuring the appropriate contact height between components such as the soil pushing plate 8 and the seed pressing plate 9 and the surface of the seedbed, so as to achieve the best seeding effect.

[0025] This quantitative seeding device for rice planting further optimizes the adaptability and flexibility of the device. By setting the support legs 11 with adjustable height and the lifting electric telescopic rod 14, the distance between the base plate 1 and the ground can be quickly adjusted according to different paddy field depths and seedbed heights, enabling the device to operate stably in various complex terrains, effectively avoiding problems such as instability or component damage caused by uneven paddy field depths. This height adjustment function enhances the versatility and practicality of the device, enabling it to better adapt to paddy field planting conditions in different regions, further improving the seeding efficiency and quality, reducing the usage limitations of the device, and providing a more reliable seeding device for rice planting.

[0026] In a further preferred embodiment of the present invention, walking motors 15 are fixedly installed on both of the two support legs 11 on the same advancing side. Walking sprockets 16 are fixedly installed on the output shafts of the two walking motors 15 and the axles of the corresponding two paddy field wheels 12. The same walking chain 17 is sleeved on the corresponding two walking sprockets 16. A main control box 18 is fixedly installed on one side of the base plate 1 for controlling the operation of the two walking motors 15.

[0027] In this embodiment, walking motors 15 are fixedly installed on both of the two support legs 11 on the same advancing side. Walking sprockets 16 are fixedly installed on the output shafts of the walking motors 15 and the axles of the corresponding paddy field wheels 12, and the two walking sprockets 16 on the same advancing side are connected by the same walking chain 17. A main control box 18 is fixedly installed on one side of the base plate 1 for controlling the operation of the two walking motors 15. When in use, the walking motors 15 are started through the main control box 18. The walking motors 15 drive the walking sprockets 16 to rotate, and then drive the paddy field wheels 12 to rotate through the walking chain 17, enabling the device to automatically advance along the grooves between the seedbeds to complete the seeding operation. The operator can control the advancing speed and direction of the device through the main control box 18 according to the actual seeding requirements to achieve precise seeding.

[0028] The quantitative seeding device for rice planting in this embodiment further realizes the automatic advancing function of the device. By installing the walking motors 15 on the support legs 11 and using the walking sprockets 16 and the walking chain 17 to drive the paddy field wheels 12 to rotate, the device can automatically advance in the grooves between the seedbeds without manual pushing, greatly reducing the labor intensity of farmers and improving the seeding efficiency. The setting of the main control box 18 enables the advancing speed and direction of the device to be precisely controlled according to actual needs, further improving the seeding accuracy and uniformity and ensuring the seeding quality. In addition, the automatic advancing function also reduces the seeding errors caused by uneven manual operation, improving the stability and reliability of the device.

[0029] In a further preferred embodiment of the present invention, a support plate 19 fixedly connected to the seed box 3 is provided above the mud pushing plate 8. A hoisting rod 20 is slidably mounted on the support plate 19. The bottom end of the hoisting rod 20 is fixedly connected to the top of the mud pushing plate 8. A height fixing bolt 21 is threadedly mounted on the support plate 19, and the end of the height fixing bolt 21 abuts against the hoisting rod 20 for adjusting the height of the mud pushing plate 8 and the height difference from the seed pressing plate 9.

[0030] In this embodiment, a support plate 19 fixedly connected to the seed box 3 is provided above the mud pushing plate 8. A hoisting rod 20 is slidably mounted on the support plate 19. The bottom end of the hoisting rod 20 is fixedly connected to the top of the mud pushing plate 8. A height fixing bolt 21 is threadedly mounted on the support plate 19, and the end of the height fixing bolt 21 abuts against the hoisting rod 20. During use, by rotating the height fixing bolt 21, the abutting position between it and the hoisting rod 20 is adjusted, thereby changing the sliding position of the hoisting rod 20 on the support plate 19, and further realizing the adjustment of the height of the mud pushing plate 8 and the adjustment of the height difference between the mud pushing plate 8 and the seed pressing plate 9. According to different seedbed soil conditions and sowing requirements, the operator can flexibly adjust the height of the mud pushing plate 8 to ensure that it can effectively level the soil on the seedbed surface, and at the same time ensure that the seed pressing plate 9 can smoothly perform the seed pressing operation, making the seeds in close contact with the soil to achieve the best sowing effect.

[0031] The quantitative sowing device for rice planting in this embodiment further optimizes the height adjustment function of the mud pushing plate 8. By setting the support plate 19, the hoisting rod 20 and the height fixing bolt 21, the flexible adjustment of the height of the mud pushing plate 8 and the adjustment of the height difference from the seed pressing plate 9 are realized. This improvement enables the device to better adapt to different seedbed soil conditions and sowing requirements, and improves the sowing accuracy and quality. In actual use, the operator can quickly adjust the height of the mud pushing plate 8 according to the flatness of the seedbed and the softness of the soil to ensure that it can effectively level the soil and create good conditions for sowing. At the same time, by adjusting the height difference between the mud pushing plate 8 and the seed pressing plate 9, it can be ensured that the seed pressing plate 9 can smoothly perform the seed pressing operation after sowing, making the seeds in close contact with the soil, improving the germination rate and survival rate of the seeds, and further enhancing the practicality and reliability of the device.

[0032] In a further preferred embodiment of the present invention, the reciprocating seed pressing mechanism includes a U-shaped bracket 22 disposed above the seed pressing plate 9 and fixedly connected to the bottom of the support circular plate 2. A camshaft 23 is rotatably installed on the U-shaped bracket 22, and a pressing cam 24 is fixedly sleeved on the camshaft 23. A rectangular rod 25 is slidably installed at the bottom of the U-shaped bracket 22. The bottom end of the rectangular rod 25 is fixedly connected to the top of the seed pressing plate 9, and the top end of the rectangular rod 25 is fixedly installed with a contact plate 26. The upper surface of the contact plate 26 is in contact with the outer edge of the pressing cam 24. A return spring 27 is fixedly installed on the inner wall of the bottom of the U-shaped bracket 22, and the top end of the return spring 27 is fixedly connected to the bottom of the contact plate 26.

[0033] In this embodiment, the reciprocating seed pressing mechanism includes a U-shaped bracket 22, a camshaft 23, a pressing cam 24, a rectangular rod 25, a contact plate 26, and a return spring 27. The U-shaped bracket 22 is fixedly connected to the bottom of the support circular plate 2. The camshaft 23 is rotatably installed on the U-shaped bracket 22, and the pressing cam 24 is fixedly sleeved on the camshaft 23. The rectangular rod 25 is slidably installed at the bottom of the U-shaped bracket 22. Its bottom end is fixedly connected to the top of the seed pressing plate 9, and the top end is fixedly installed with a contact plate 26. The upper surface of the contact plate 26 is in contact with the outer edge of the pressing cam 24. A return spring 27 is fixedly installed on the inner wall of the bottom of the U-shaped bracket 22, and the top end of the return spring 27 is fixedly connected to the bottom of the contact plate 26. During use, the feeding motor 10 drives the camshaft 23 to rotate, and the pressing cam 24 rotates accordingly. When the outer edge of the pressing cam 24 pushes the contact plate 26, the rectangular rod 25 drives the seed pressing plate 9 to move downward to press the seeds and the soil on the surface of the seedbed. When the outer edge of the pressing cam 24 leaves the contact plate 26, the return spring 27 pulls the contact plate 26 upward, causing the seed pressing plate 9 to return to its initial position, thereby realizing the reciprocating up and down movement of the seed pressing plate 9 and completing the seed pressing action.

[0034] The quantitative seeding device for rice planting in this embodiment further optimizes the design of the seed pressing mechanism. By setting the reciprocating seed pressing mechanism, including a U-shaped bracket 22, a camshaft 23, a pressing cam 24, a rectangular rod 25, a contact plate 26, and a return spring 27, the stable reciprocating up and down movement of the seed pressing plate 9 is realized, which can effectively press the seeds and the soil on the surface of the seedbed, making the seeds in close contact with the soil, and improving the germination rate and survival rate of the seeds. The combined use of the pressing cam 24 and the return spring 27 ensures the continuity and stability of the seed pressing action, and avoids the seeding quality problems caused by uneven seed pressing force.

[0035] In a further preferred embodiment of the present invention, a power main shaft 28 is rotatably installed in the seed box 3, a chain disc 29 is fixedly sleeved on the camshaft 23, and blanking sprockets 30 are fixedly sleeved on the blanking shaft 5, the output shaft of the blanking motor 10, and the power main shaft 28. The same blanking chain 31 is sleeved on the three blanking sprockets 30 and the chain disc 29, so that the blanking motor 10 drives the blanking shaft 5, the power main shaft 28, and the camshaft 23 to rotate synchronously.

[0036] In this embodiment, a power main shaft 28 is rotatably installed in the seed box 3, a chain disc 29 is fixedly sleeved on the camshaft 23, and blanking sprockets 30 are fixedly sleeved on the blanking shaft 5, the output shaft of the blanking motor 10, and the power main shaft 28. The same blanking chain 31 is sleeved on the three blanking sprockets 30 and the chain disc 29. During use, after the blanking motor 10 is started, the blanking sprocket 30 on its output shaft drives the blanking shaft 5 and the power main shaft 28 to rotate synchronously through the blanking chain 31. At the same time, the blanking sprocket 30 on the power main shaft 28 drives the chain disc 29 to rotate through the blanking chain 31, thereby driving the camshaft 23 to rotate. In this way, the blanking motor 10 realizes the synchronous drive of the blanking shaft 5, the power main shaft 28, and the camshaft 23 through a set of chain drive system, enabling the seed grooves 7 on the blanking wheel shaft 6 to discharge seeds quantitatively, and at the same time, the pressing cam 24 can drive the seed pressing plate 9 to perform a reciprocating seed pressing action, completing the coordinated operations of sowing and seed pressing.

[0037] The quantitative sowing device for rice planting in this embodiment further optimizes the power transmission system. By setting the power main shaft 28, the chain disc 29, the blanking sprockets 30, and the blanking chain 31, the blanking motor 10 realizes the synchronous drive of the blanking shaft 5, the power main shaft 28, and the camshaft 23. This improvement enables the various components of the device to work together, improving the efficiency and stability of sowing and seed pressing. The single power source of the blanking motor 10 ensures the synchronous operation of the blanking wheel shaft 6 and the pressing cam 24 through the chain drive system, avoiding problems such as uneven sowing or insufficient seed pressing caused by asynchronous power.

[0038] In a further preferred embodiment of the present invention, a distribution box 32 and a sub-control box 33 are fixedly installed on the seed box 3 for controlling the operation of the blanking motor 10.

[0039] In this embodiment, a distribution box 32 and a sub-control box 33 are fixedly installed on the seed box 3. The distribution box 32 is used to provide stable power supply for the blanking motor 10 to ensure the normal operation of the blanking motor 10. The sub-control box 33 is used to control operations such as the start, stop, and running speed of the blanking motor 10. During use, the operator can, through the control buttons or interface on the sub-control box 33, accurately control the running state of the blanking motor 10 according to the actual sowing requirements. For example, adjust the rotation speed of the blanking motor 10 to control the blanking speed of the seeds, so as to meet the requirements of different sowing densities. At the same time, the distribution box 32 ensures that the blanking motor 10 obtains stable current during operation, avoiding problems such as motor failures or uneven sowing caused by power fluctuations, and meeting the needs of the rotation of the support circular plate 2 and the seed box 3.

[0040] The quantitative sowing device for rice planting in this embodiment further optimizes the motor control and power supply system. By installing the distribution box 32 and the sub-control box 33 on the seed box 3, precise control and stable power supply for the blanking motor 10 are achieved. The setting of the sub-control box 33 enables the operator to flexibly adjust the running speed of the blanking motor 10 according to different sowing requirements, so as to achieve precise sowing and improve the sowing quality. The distribution box 32 ensures that the blanking motor 10 obtains stable power supply during operation.

[0041] In a further preferred embodiment of the present invention, a lifting frame 34 fixedly installed on the seed box 3 is provided between the blanking port 4 and the seed pressing plate 9. An identification camera 35 is fixedly installed on the lifting frame 34, which is used to identify the sowing distribution of the seeds on the seedbed, so as to control the rotation speed of the blanking motor 10. The identification camera 35 is connected to the sub-control box 33, and the identification camera 35 can identify the sowing density of the seeds by using AI technology.

[0042] In this embodiment, a lifting frame 34 fixedly installed on the seed box 3 is provided between the blanking port 4 and the seed pressing plate 9, and an identification camera 35 is fixedly installed on the lifting frame 34. The identification camera 35 is connected to the sub-control box 33 and uses AI technology to identify the sowing distribution of the seeds on the seedbed. During use, the identification camera 35 takes real-time pictures of the seed distribution on the seedbed and analyzes the sowing density through AI technology. According to the identification result, the sub-control box 33 automatically adjusts the rotation speed of the blanking motor 10, so as to control the blanking speed of the seeds and ensure that the sowing density meets the preset requirements. For example, if it is identified that the sowing density in a certain area is insufficient, the sub-control box 33 will increase the rotation speed of the blanking motor 10 to increase the blanking amount of the seeds; on the contrary, if the sowing density is too high, the rotation speed will be reduced to reduce the blanking amount, realizing precise sowing.

[0043] The quantitative seeding equipment for rice planting in this embodiment further introduces intelligent recognition and control technologies. By installing a hoisting frame 34 and an identification camera 35 on the seed box 3 and using AI technology to identify the seeding distribution of seeds on the seedbed, the equipment can monitor the seeding situation in real time and automatically adjust the rotation speed of the feeding motor 10. This improvement significantly improves the seeding accuracy and uniformity, reduces manual intervention, and lowers the labor intensity. The application of AI technology enables the equipment to dynamically adjust seeding parameters according to the actual seeding situation, further optimizing the seeding effect, improving the utilization rate and germination rate of seeds. In addition, this intelligent control method also improves the automation level of the equipment, enhances the adaptability of the equipment in complex environments, and improves the overall operation efficiency.

[0044] In a further preferred embodiment of the present invention, a circular rotating groove is formed on the base plate 1, the supporting circular plate 2 is rotatably installed at the circular rotating groove, the supporting circular plate 2 has a rim, the diameter of the rim is greater than the diameter of the circular rotating groove, the rim is lapped on the top of the base plate 1, at least two positioning pins 64 are provided and are arranged oppositely at 180°, positioning holes are provided at the positions of the base plate 1 and the rim of the supporting circular plate 2 corresponding to the positioning pins 64, and the rotation adjustment angle of the supporting circular plate 2 is 180° for realizing a U-turn in different traveling directions.

[0045] In this embodiment, a circular rotating groove is formed on the base plate 1, and the supporting circular plate 2 is rotatably installed at the circular rotating groove. The supporting circular plate 2 has a rim, the diameter of the rim is greater than the diameter of the circular rotating groove, and the rim is lapped on the top of the base plate 1. At least two positioning pins 64 are provided and are arranged oppositely at 180°, and positioning holes are provided at the positions of the base plate 1 and the rim of the supporting circular plate 2 corresponding to the positioning pins 64. During use, according to the requirement of the seeding traveling direction, the operator can rotate the supporting circular plate 2 to rotate it along the circular rotating groove. After adjusting to the required angle, the positioning pin 64 is inserted into the corresponding positioning hole to fix the position of the supporting circular plate 2. Since the rotation adjustment angle of the supporting circular plate 2 is 180°, the equipment can quickly make a U-turn in different traveling directions, and the switching of the seeding direction can be completed without complicated operations.

[0046] The quantitative seeding device for rice planting in this embodiment further optimizes the rotation adjustment function of the supporting circular plate 2. By setting a circular rotating groove on the base plate 1, enabling the supporting circular plate 2 to be lap-jointed along the edge on the top of the base plate 1, and simultaneously setting at least two positioning pins 64 opposite to each other at 180°, the rapid rotation adjustment and fixation of the supporting circular plate 2 are achieved. This design enables the device to quickly switch the traveling direction and perform seeding operations in different directions, greatly improving the flexibility and operation efficiency of the device. Especially when the gap between seedbeds is small, the device can quickly complete the turning operation, reducing the time wasted due to difficult turning and further enhancing the seeding efficiency. In addition, this structure is simple and reliable, easy to operate and maintain, reducing the usage difficulty and maintenance cost of the device.

[0047] In a further preferred embodiment of the present invention, the advancing sides of the mud pushing plate 8 and the seed pressing plate 9 are both tilted upwards, and the bottoms of the mud pushing plate 8 and the seed pressing plate 9 are both flat surfaces.

[0048] In this embodiment, the advancing sides of the mud pushing plate 8 and the seed pressing plate 9 are both tilted upwards, while their bottoms are both flat surfaces. This design enables the mud pushing plate 8 to more smoothly level the soil on the surface of the seedbed during the device's advancement, avoiding soil accumulation or excessive resistance. At the same time, the upward tilt of the seed pressing plate 9 helps to reduce excessive compaction of the soil during seed pressing, ensuring that the seeds can better contact the soil. During specific use, the mud pushing plate 8 goes first to level the soil on the surface of the seedbed, creating good conditions for seeding; subsequently, the seed pressing plate 9 follows up to gently pat the surface of the seeds and the soil, making the seeds closely contact the soil and completing the seeding process.

[0049] The quantitative seeding device for rice planting in this embodiment further optimizes the structural design of the mud pushing plate 8 and the seed pressing plate 9. The advancing sides of the mud pushing plate 8 and the seed pressing plate 9 are tilted upwards, and the bottoms are flat surfaces. This structure enables the mud pushing plate 8 to be more smooth when leveling the soil, reducing soil accumulation and resistance and improving the leveling effect. At the same time, the upward tilt of the seed pressing plate 9 helps to reduce excessive compaction of the soil during seed pressing, avoiding affecting the germination and growth of seeds due to overly compact soil.

[0050] In order to further improve the usage effect of this device, in addition to the above-mentioned solutions, this solution also has the following embodiments: In another embodiment of the present invention, a material scattering shaft 36 is rotatably installed in the seed box 3, and a plurality of material scattering rods 37 are fixedly installed on the material scattering shaft 36. An active shifting block 38 is fixedly installed on one end of the power main shaft 28 located outside the seed box 3. A driven block 39 and an arm plate 40 are fixedly installed on one end of the material scattering shaft 36 located outside the seed box 3. The setting position of the driven block 39 intersects with the rotation trajectory of the active shifting block 38. A mounting seat 41 and a limit block 43 are fixedly installed on the side of the seed box 3. A contraction spring 42 is fixedly installed between the mounting seat 41 and the arm plate 40. The limit block 43 is used to limit the swing angle of the arm plate 40. In the above, when the power main shaft 28 drives the active shifting block 38 to rotate, the driven block 39 is shifted, so that the material scattering shaft 36 and the material scattering rod 37 swing, and at the same time, the contraction spring 42 ensures that the arm plate 40 and the material scattering shaft 36 are reset.

[0051] In this embodiment, a material scattering shaft 36 is rotatably installed in the seed box 3, and a plurality of material scattering rods 37 are fixedly installed on the material scattering shaft 36. An active shifting block 38 is fixedly installed on one end of the power main shaft 28 located outside the seed box 3, and a driven block 39 and an arm plate 40 are fixedly installed on one end of the material scattering shaft 36 located outside the seed box 3. The setting position of the driven block 39 intersects with the rotation trajectory of the active shifting block 38. A mounting seat 41 and a limit block 43 are fixedly installed on the side of the seed box 3, and a contraction spring 42 is fixedly installed between the mounting seat 41 and the arm plate 40, and the limit block 43 is used to limit the swing angle of the arm plate 40. When in use, the power main shaft 28 drives the active shifting block 38 to rotate, and the active shifting block 38 shifts the driven block 39, so that the material scattering shaft 36 and the material scattering rod 37 swing. At the same time, the contraction spring 42 ensures that the arm plate 40 and the material scattering shaft 36 are reset. In this way, the material breaking rod 37 can break up the seeds in the seed box 3 to prevent the seeds from agglomerating and ensure that the seeds can be evenly distributed.

[0052] The quantitative sowing equipment for rice planting in this embodiment further optimizes the seed scattering function. By setting the material scattering shaft 36, the material scattering rod 37, the active shifting block 38, the driven block 39, the support arm plate 40, the contraction spring 42 and the limit block 43, the automatic scattering of the seeds is realized. When the power main shaft 28 drives the active shifting block 38 to rotate, the active shifting block 38 shifts the driven block 39, so that the material scattering shaft 36 and the material scattering rod 37 swing, thereby scattering the seeds in the seed box 3. The contraction spring 42 ensures that the support arm plate 40 and the material scattering shaft 36 are reset, ensuring the continuity and stability of the scattering action. This design can effectively prevent the seeds from clumping, ensure that the seeds can be evenly fed, and improve the uniformity and quality of sowing.

[0053] In another embodiment of the present invention, a device ridging mechanism is provided on the base plate 1. The device ridging mechanism includes two receiving square tubes 44 fixedly installed on the base plate 1. The two receiving square tubes 44 are arranged in parallel. The arrangement direction of the receiving square tubes 44 is the same as the arrangement direction of the seedbeds and perpendicular to the traveling direction. An assembly plate 45 and an extension plate 46 can be slidably installed in a drawable manner at both ends of the two receiving square tubes 44. One end of both the assembly plate 45 and the extension plate 46 extends outside the receiving square tube 44. The lengths of the assembly plate 45 and the extension plate 46 are at least the width of two seedbeds. The same synchronous connection plate 47 is fixedly installed between the two extension plates 46 for simultaneously drawing the two extension plates 46 to span another seedbed. First insertion plates 48 can be slidably installed in a liftable manner on the portions of the two assembly plates 45 outside the receiving square tubes 44. Second insertion plates 49 can be slidably installed in a liftable manner on the portions of the two extension plates 46 outside the receiving square tubes 44. Ground-touching anti-tipping sleeve plates 50 are fixedly sleeved on the two first insertion plates 48 and the second insertion plates 49. The bottom ends of the two first insertion plates 48 and the second insertion plates 49 are pointed. After the two first insertion plates 48 and the second insertion plates 49 are inserted into the ground, the ground-touching anti-tipping sleeve plates 50 increase the contact surface with the ground. Moving blocks 51 are fixedly installed at the top ends of the two first insertion plates 48 and the second insertion plates 49. Lifting screw rods 52 can be rotatably installed on the two assembly plates 45 and the extension plates 46. The four lifting screw rods 52 respectively thread through the four moving blocks 51. The four lifting screw rods 52 rotate synchronously to synchronously lift the two first insertion plates 48 and the second insertion plates 49 so as to lift the whole device.

[0054] In this embodiment, a device ridging mechanism is provided on the base plate 1, including two receiving square tubes 44 arranged in parallel. The arrangement direction thereof is the same as the arrangement direction of the seedbeds and perpendicular to the traveling direction. An assembly plate 45 and an extension plate 46 can be slidably installed in a drawable manner at both ends of the two receiving square tubes 44. One end of both the assembly plate 45 and the extension plate 46 extends outside the receiving square tube 44, and their lengths are at least the width of two seedbeds. A synchronous connection plate 47 is fixedly installed between the two extension plates 46. First insertion plates 48 and second insertion plates 49 can be slidably installed in a liftable manner on the assembly plate 45 and the extension plate 46. Ground-touching anti-tipping sleeve plates 50 are fixedly sleeved on the two first insertion plates 48 and the second insertion plates 49, with pointed bottom ends and moving blocks 51 fixedly installed at the top ends. Lifting screw rods 52 can be rotatably installed on the assembly plate 45 and the extension plate 46 and thread through the moving blocks 51.

[0055] During use, when it is necessary to cross to another seedbed, first pull the two extension plates 46 simultaneously through the synchronous connection plate 47 to make the whole device cross to another seedbed. Then, rotate the lifting screw rod 52 to lift the first insertion plate 48 and the second insertion plate 49 synchronously. After inserting into the ground, the ground-touching anti-tipping sleeve plate 50 increases the contact surface with the ground, thereby lifting the whole device. Then, push the base plate 1 to make the whole device slide above another seedbed. At this time, the storage square tube 44 slides along the assembly plate 45 and the extension plate 46. The assembly plate 45 extends more out of the storage square tube 44, while the already extended extension plate 46 is retracted into the storage square tube 44 until the whole device has completed the lateral movement. At this time, the ridge-changing operation is completed. Subsequently, raise the first insertion plate 48 and the second insertion plate 49, lower the device, and retract the assembly plate 45 and the extension plate 46 into the storage square tube 44 again to resume operation.

[0056] By setting up the ridge-changing mechanism of the device, including the storage square tube 44, the assembly plate 45, the extension plate 46, the synchronous connection plate 47, the first insertion plate 48, the second insertion plate 49, the ground-touching anti-tipping sleeve plate 50, the moving block 51 and the lifting screw rod 52, the rapid transfer and stable lifting of the device between the seedbeds are realized. This design enables the device to easily cross the narrow gaps between the seedbeds without complex turning around or manual lifting of the device, greatly improving the flexibility and operation convenience of the device. At the same time, the setting of the ground-touching anti-tipping sleeve plate 50 increases the contact area between the device and the ground, improving the stability and safety of the device on muddy ground, and further enhancing the practicality and reliability of the device. In addition, through the synergistic effect of the synchronous connection plate 47 and the lifting screw rod 52, the ridge-changing operation of the device is more stable and efficient, reducing the operation time and improving the operation efficiency.

[0057] The quantitative seeding device for rice planting in this embodiment further improves the transfer efficiency and operation convenience of the device between the seedbeds by adding the ridge-changing mechanism of the device. The design of the ridge-changing mechanism enables the device to quickly cross the gaps between the seedbeds without complex operations, improving the seeding efficiency. This improvement not only enhances the overall performance of the device but also provides a more efficient and convenient seeding device for rice planting.

[0058] In another embodiment of the present invention, synchronous sprockets 53 are fixedly installed at the bottom ends of the four lifting screw rods 52. A same synchronous chain 54 is sleeved on two synchronous sprockets 53 on the same side, so that the two lifting screw rods 52 on the same side rotate synchronously, and the two first inserting plates 48 or the two second inserting plates 49 on the same side are lifted and lowered synchronously. A motor bracket 55 is fixedly installed on the side of one of the assembly plates 45. A lifting motor 56 is fixedly installed on the motor bracket 55. Lifting sprockets 57 are fixedly installed on the output shaft of the lifting motor 56 and the top end of a lifting screw rod 52 corresponding to the first inserting plate 48. A same lifting chain 58 is sleeved on the two lifting sprockets 57, for driving the two first inserting plates 48 to be lifted and lowered synchronously. Shaft seats 59 are fixedly installed on the other first inserting plate 48 and the corresponding second inserting plate 49. A spline cylinder 60 and a spline shaft 61 are respectively rotatably installed on the two shaft seats 59. The spline shaft 61 is slidably installed in the spline cylinder 60, and the sliding length of the spline shaft 61 is synchronized with that of the extension plate 46. Tapered gears 62 are fixedly installed on the spline cylinder 60 and the spline shaft 61 and the top ends of the corresponding two lifting screw rods 52. The two corresponding tapered gears 62 are engaged with each other, so that the four lifting screw rods 52 rotate synchronously, and the two first inserting plates 48 and the second inserting plate 49 are lifted and lowered synchronously.

[0059] In this embodiment, synchronous sprockets 53 are fixedly installed at the bottom ends of the four lifting screw rods 52. A same synchronous chain 54 is sleeved on two synchronous sprockets 53 on the same side, so that the two lifting screw rods 52 on the same side rotate synchronously, thereby realizing the synchronous lifting and lowering of the two first inserting plates 48 or the two second inserting plates 49 on the same side. A motor bracket 55 is fixedly installed on the side of one of the assembly plates 45. A lifting motor 56 is fixedly installed on the motor bracket 55. Lifting sprockets 57 are fixedly installed on the output shaft of the lifting motor 56 and the top end of a lifting screw rod 52 corresponding to the first inserting plate 48. A same lifting chain 58 is sleeved on the two lifting sprockets 57, for driving the two first inserting plates 48 to be lifted and lowered synchronously. Shaft seats 59 are fixedly installed on the other first inserting plate 48 and the corresponding second inserting plate 49. A spline cylinder 60 and a spline shaft 61 are respectively rotatably installed on the two shaft seats 59. The spline shaft 61 is slidably installed in the spline cylinder 60, and the sliding length of the spline shaft 61 is synchronized with that of the extension plate 46. Tapered gears 62 are fixedly installed on the spline cylinder 60 and the spline shaft 61 and the top ends of the corresponding two lifting screw rods 52. The two corresponding tapered gears 62 are engaged with each other, so that the four lifting screw rods 52 rotate synchronously, and the two first inserting plates 48 and the second inserting plate 49 are lifted and lowered synchronously.

[0060] During use, start the lifting motor 56. The lifting chain 58 drives a lifting screw rod 52 to rotate, and then through the meshing transmission of the bevel gears 62, the four lifting screw rods 52 rotate synchronously, realizing the synchronous lifting and lowering of the first plug board 48 and the second plug board 49, and completing the lifting or lowering operation of the equipment. The spline barrel 60 and the spline shaft 61 not only adapt to the power transmission of the equipment, but also have ductility to meet the power transmission requirements when the distance between the first plug board 48 and the second plug board 49 is adjusted.

[0061] By setting the synchronous sprockets 53, synchronous chains 54, motor bracket 55, lifting motor 56, lifting sprockets 57, shaft seats 59, spline barrels 60, spline shafts 61 and bevel gears 62, the synchronous rotation of the four lifting screw rods 52 is realized, thus ensuring that the first plug board 48 and the second plug board 49 can be lifted and lowered synchronously. This design not only improves the stability and reliability of the equipment lifting operation, but also reduces the risk of equipment tilting or instability caused by asynchronous lifting. The use of the lifting motor 56 realizes the automation of the lifting operation, reducing the complexity and labor intensity of manual operation. In addition, the settings of the spline barrel 60 and the spline shaft 61 can adapt to the pulling action of the extension plate 46, ensuring the normal operation of the lifting mechanism during the equipment ridge-changing process, and further improving the flexibility and adaptability of the equipment.

[0062] In another embodiment of the present invention, protective baffles 63 are provided on both sides of the two synchronous chains 54, and the protective baffles 63 are fixedly connected to the corresponding mounting plates 45 or extension plates 46.

[0063] In this embodiment, protective baffles 63 are provided on both sides of the two synchronous chains 54, and the protective baffles 63 are fixedly connected to the corresponding mounting plates 45 or extension plates 46. During use, the protective baffles 63 can effectively prevent external sundries or soil from entering the meshing area of the synchronous chains 54 and the synchronous sprockets 53, thus ensuring the normal operation of the synchronous chains 54. At the same time, since the operator advances along the ridge ditch and operates the equipment on the side, the protective baffles 63 can also prevent the operator from contacting the high-speed rotating synchronous chains 54 during the operation of the equipment, avoiding accidental injuries. During the equipment ridge-changing operation, the fixed connection structure between the protective baffles 63 and the mounting plates 45 or extension plates 46 ensures the stability of the protective baffles 63, enabling them to continuously play a protective role.

[0064] In summary, compared with the related art, by setting the rotatable support circular plate 2 and the positioning pin 64, the device of the present invention can flexibly adjust the direction of the equipment according to the traveling direction of the seedbed, and is firmly fixed, easy to operate, effectively solving the problem of the complex turning operation required for the existing sowing equipment when transferring between seedbeds. The seed groove 7 on the seed discharging wheel shaft 6 can achieve the quantitative discharge of seeds, ensuring the uniformity of sowing. The setting of the soil pushing plate 8 and the seed pressing plate 9 levels the soil before sowing and makes the seeds in close contact with the soil after sowing respectively, further improving the sowing effect, reducing manual operation and improving the operation efficiency.

[0065] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that are essentially not deviated from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A quantitative sowing device for rice planting, characterized in that: include: A base plate, a supporting circular plate and a seed box, wherein the supporting circular plate is rotatably mounted on the base plate and is used for adjustment according to the travel direction, and positioning pins are inserted between the supporting circular plate and the base plate to fix the direction of the supporting circular plate on the base plate, and the seed box is fixedly embedded on the supporting circular plate, and the top of the seed box is open and the bottom has a feeding port; A feeding shaft is rotatably installed in the feeding port, a feeding wheel shaft is fixedly sleeved on the feeding shaft, and a plurality of seed grooves are opened on the feeding wheel shaft. With the rotation of the feeding shaft and the feeding wheel shaft, the seeds in the seed grooves are discharged from the feeding port to the seedbed on the ground; A mud-pushing plate and a seed-pressing plate are respectively provided on both sides of the feed opening, and the mud-pushing plate can be lifted and installed at the bottom of the seed box, and the seed-pressing plate adopts a reciprocating seed-pressing mechanism and is arranged at the bottom of the supporting circular plate, and reciprocates up and down during use to pat the seeds and the soil on the surface of the seedbed, so that the seeds are in close contact with the soil, the mud-pushing plate is located at the front side of the movement, and is used to flatten the soil on the surface of the seedbed, and the seed-pressing plate is located at the rear side of the movement, and the setting heights of the mud-pushing plate and the seed-pressing plate are both lower than the height of the feed opening, and the setting height of the mud-pushing plate is slightly higher than the lowest height of the seed-pressing plate; A feeding motor is fixedly installed at the bottom of the seed box, which is used to drive the feeding shaft to rotate and drive the reciprocating seed pressing mechanism to move, thereby causing the seed pressing plate to reciprocate up and down; Support legs are provided at the four corners of the base plate, and paddy field wheels are rotatably mounted on the four support legs. The lengths of the discharge port and the discharge wheel shaft are consistent with the width of the seedbed. The spacing between the paddy field wheels is greater than the width of the paddy field and is used to move along the grooves between adjacent seedbeds.

2. The quantitative sowing equipment for rice planting as claimed in claim 1, characterized in that: The supporting legs are slidably installed on the base plate, and the same cross beam is fixedly installed on the two supporting legs located on the same traveling side. Lifting electric telescopic rods are fixedly installed on both sides of the base plate, and the output rods of the two lifting electric telescopic rods are respectively fixedly connected to the two cross beams for adjusting the distance of the base plate from the ground.

3. The quantitative sowing equipment for rice planting as claimed in claim 2, characterized in that: Walking motors are fixedly installed on the two support legs located on the same traveling side, walking sprockets are fixedly installed on the output shafts of the two walking motors and the axles of the corresponding two paddy field wheels, the same walking chain is sleeved on the corresponding two walking sprockets, and a main control box is fixedly installed on one side of the base plate for controlling the operation of the two walking motors.

4. The quantitative sowing equipment for rice planting as claimed in claim 1, characterized in that: A bracket plate fixedly connected to the seed box is provided above the mud pushing plate, and a lifting rod is slidably installed on the bracket plate. The bottom end of the lifting rod is fixedly connected to the top of the mud pushing plate, and a height fixing bolt is threadedly installed on the bracket plate. The end of the height fixing bolt is in conflict with the lifting rod, which is used to adjust the height of the mud pushing plate and the height difference with the seed pressing plate.

5. The quantitative sowing equipment for rice planting as claimed in claim 1, characterized in that: The reciprocating seed pressing mechanism includes a U-shaped bracket which is arranged above the seed pressing plate and fixedly connected to the bottom of the supporting circular plate, a cam shaft is rotatably installed on the U-shaped bracket, a pressing cam is fixedly sleeved on the cam shaft, a rectangular rod is slidably installed on the bottom of the U-shaped bracket, the bottom end of the rectangular rod is fixedly connected to the top of the seed pressing plate, a contact plate is fixedly installed on the top of the rectangular rod, the upper surface of the contact plate is in contact with the outer edge of the pressing cam, a return spring is fixedly installed on the bottom inner wall of the U-shaped bracket, and the top end of the return spring is fixedly connected to the bottom of the contact plate.

6. The quantitative sowing equipment for rice planting as claimed in claim 5, characterized in that: A power main shaft is rotatably installed in the seed box, a chain disk is fixedly sleeved on the camshaft, and a unloading sprocket is fixedly sleeved on the unloading shaft, the output shaft of the unloading motor and the power main shaft. The three unloading sprockets and the chain disk are sleeved with the same unloading chain, so that the unloading motor drives the unloading shaft, the power main shaft and the camshaft to rotate synchronously.

7. The quantitative sowing equipment for rice planting as claimed in claim 1, characterized in that: A distribution box and a sub-control box are fixedly installed on the seed box to control the operation of the feeding motor.

8. The quantitative sowing device for rice planting as claimed in claim 7, characterized in that: A hanging frame fixedly mounted on the seed box is provided between the feeding port and the seed pressing plate, and an identification camera is fixedly mounted on the hanging frame for identifying the sowing distribution of seeds on the seedbed, thereby controlling the rotation speed of the feeding motor, and the identification camera is connected to the sub-control box.

9. The quantitative sowing device for rice planting as claimed in claim 1, characterized in that: A circular rotation groove is provided on the base plate, and the supporting circular plate is rotatably installed at the circular rotation groove. The supporting circular plate has an edge, and the diameter of the edge is larger than the diameter of the circular rotation groove. The edge is overlapped on the top of the base plate. At least two positioning pins are provided, and are arranged 180° opposite to each other. Positioning holes are provided at the positions of the positioning pins corresponding to the edges of the base plate and the supporting circular plate. The rotation adjustment angle of the supporting circular plate is 180°, which is used to realize U-turns in different travel directions.

10. The quantitative sowing device for rice planting as claimed in claim 1, characterized in that: The moving sides of the mud pushing plate and the seed pressing plate are both tilted upwards, and the bottoms of the mud pushing plate and the seed pressing plate are both flat.

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