Rice cultivation seedling raising device

Abstract

The invention relates to the technical field of rice seedling raising, in particular to a rice cultivation seedling raising device, which is characterized in that a soil loosening mechanism for loosening soil is arranged at the upper end of a base, and a driving structure is arranged at the lower end of the base; the soil loosening mechanism comprises a supporting seat, the supporting seat is fixedly connected to one side of the upper end of the base, the supporting seat is fixedly connected with a circular shaft, and the two ends of the circular shaft are sleeved with two extrusion springs which are symmetrically arranged. The titanium alloy needle body is matched with the eccentric wheel driving mechanism, so that a hardened layer of a volume-weight seedling raising plate can be broken, the porosity of a seedling raising plate matrix is improved, the root penetrating resistance is reduced, the absorption and utilization rate of nitrogen fertilizer is improved, the content of brown rice protein and amylose is indirectly improved, and the taste value of brown rice is improved; the device is simpler and more effective, and is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of rice seedling cultivation, in particular to a rice seedling cultivation device. Background Art

[0002] As my country's core japonica rice producing region, the Black Soil Rice Region's unique climate and soil conditions endow rice with excellent palatability. Research has shown that the region's average temperature during the grain-filling period is 23-24°C (below the 24°C threshold for a significant increase in amylose content). This, combined with the Black Soil Rice Region's stable nitrogen uptake throughout the entire process, provides a natural advantage for producing high-quality japonica rice with low amylose content (14-16%) and low protein content (6.5-7.5%). However, over time, soil bulk density in the Black Soil Region has increased from 1.0 g / cm³ to 1.32 g / cm³, and the tillage layer thickness has decreased to 18 cm, resulting in root penetration depths of less than 15 cm and nitrogen uptake efficiency of only 32.5%. Nitrogen application rate is significantly positively correlated with protein content (r=0.573*), while polished rice palatability decreases by 2.3 points for every 100°C increase in accumulated temperature. Traditional flooding irrigation reduces rhizosphere dissolved oxygen to less than 0.5 mg / L, exacerbating nitrogen loss and protein synthesis, resulting in a brown rice taste value generally lower than 72 points.

[0003] Soil management in seedling trays during current seedling cultivation has become a key bottleneck hindering improved rice taste. Thirty days after seeding, the substrate bulk density increases by 0.25g / cm³, and root penetration resistance reaches 1.8MPa, severely inhibiting nitrogen absorption. Furthermore, existing soil scarification techniques have significant limitations: manual scarification efficiency is only 0.5 mu / day, chemical scarifier residue rates are as high as 15%, and conventional mechanical scarification has a root damage rate exceeding 15% and insufficient operating depth. When soil compaction exceeds 1.2MPa, nitrogen absorption efficiency decreases by 22%, while the protein content of brown rice increases by 0.8-1.2 percentage points. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a rice seedling cultivation device.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a rice planting and seedling raising device, comprising a base, wherein a seedling raising tray is provided on the upper end of the base; The upper end of the base is provided with a loosening mechanism for loosening the soil, and the lower end of the base is provided with a driving structure; The loosening mechanism includes a support, which is fixedly connected to one side of the upper end of the base, and the support is fixedly connected to a circular shaft, two extrusion springs are symmetrically arranged at both ends of the circular shaft, one end of the two extrusion springs is fixedly connected to an extrusion block, the extrusion block is slidably connected to the circular shaft, the middle of the circular shaft is rotatably connected to a sleeve, the outer wall of the sleeve is fixedly connected to a limiting block, the upper end of the support is provided with a guide groove, the guide groove is slidably connected to a slider, the upper end of the slider is fixedly connected to a clamping block, the upper end of the clamping block is provided with a limiting groove, one side of the clamping block is fixedly connected to the extrusion shaft, one side of the sleeve is fixedly connected to the bracket, one side of the bracket is fixedly connected to a pressure plate, and one side of the pressure plate is fixedly connected to a number of loosening needles; The pressure plate is slidably connected with a symmetrically arranged transmission rod, one end of the transmission rod is fixedly connected to a transmission plate, the other ends of the two transmission rods are fixedly connected to a scraper, the scraper is slidably connected to a number of loosening needles, and the outer walls of the transmission rods are each sleeved with a return spring, one end of the two return springs is respectively fixedly connected to the pressure plate, and the other ends of the return springs are respectively fixedly connected to the transmission plate.

[0006] Specifically, the driving structure includes a motor and a rotating shaft. The motor is fixedly installed at the lower end of the base. The output end of the motor is fixedly connected to an eccentric wheel. The rotating shaft is fixedly connected to one side of the base. The rotating shaft is fixedly connected to an extrusion plate. An extrusion groove is provided at the upper end of the extrusion plate. The extrusion groove is slidably connected to the extrusion shaft. The lower end of the extrusion plate is fixedly connected to a rectangular plate, and the rectangular plate is in contact with the eccentric wheel.

[0007] Specifically, a groove is provided on one side of the pressing plate, the horizontal length of the groove is greater than 12 cm, and the vertical depth of the groove is greater than 5 cm.

[0008] Specifically, the loosening needle is made of titanium alloy, the diameter of the loosening needle is 2 mm, and the lower end of the loosening needle is designed as a conical structure.

[0009] Specifically, the extrusion block is slidably connected to the circular shaft, the limiting groove is designed as an arc-shaped structure, and the limiting block is embedded in the limiting groove.

[0010] Specifically, a plurality of square grooves are provided on the upper end of the seedling raising tray, and a plurality of ventilation holes are provided on the seedling raising tray.

[0011] Specifically, the lower end of the base is fixedly connected to a support frame, and the four corners of the upper end of the base are fixedly connected to blocks, and the blocks are arranged corresponding to the seedling tray.

[0012] The present invention has the following beneficial effects: The present invention optimizes soil structure and nutrient absorption during seedling cultivation through the use of loosening needles. The titanium alloy needles, combined with an eccentric drive mechanism, can break up the compacted layer of bulk density seedling trays, increasing the porosity of the tray matrix. This reduces root penetration resistance, improves nitrogen fertilizer absorption and utilization, and indirectly increases the protein and amylose content of brown rice, improving the palatability of brown rice. Compared to manual loosening, the present invention is simpler, more effective, and more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] Figure 1 A first state diagram of the structure provided by the present invention; Figure 2 A front view of the second state of the structure provided by the present invention; Figure 3 A side view of the structure provided by the present invention in a second state; Figure 4 A schematic diagram of the bottom structure provided by the present invention; Figure 5 A schematic diagram of the rotating shaft structure provided by the present invention; Figure 6 A schematic diagram of the local structure provided by the present invention; Figure 7 A schematic diagram of the card block structure provided by the present invention; Figure 8 This is a schematic diagram of the scraper structure state provided by the present invention.

[0015] In the figure: 1. base; 2. seedling tray; 3. support; 4. circular shaft; 5. extrusion spring; 6. extrusion block; 7. sleeve; 8. limit block; 9. guide groove; 10. slider; 11. block; 12. limit groove; 13. extrusion shaft; 14. bracket; 15. pressure plate; 16. loosening needle; 17. transmission rod; 18. transmission plate; 19. scraper; 20. return spring; 21. motor; 22. rotating shaft; 23. eccentric wheel; 24. extrusion plate; 25. extrusion groove; 26. rectangular plate; 27. support frame; 28. stop block. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figures 1-8 As shown, the present invention provides the following technical solutions: Embodiment 1: A rice seedling cultivation device comprises a base 1, with a seedling tray 2 provided on the upper end of the base 1; The lower end of the base 1 is fixedly connected to a support frame 27, and the four corners of the upper end of the base 1 are fixedly connected to blocks 28. The blocks 28 are arranged corresponding to the seedling tray 2. The upper end of the seedling tray 2 is provided with a plurality of square grooves, and the seedling tray 2 is provided with a plurality of ventilation holes.

[0018] When in use, place the rice seeds in the seedling tray 2 at appropriate intervals, then fill in an appropriate amount of soil or culture medium to cover the seeds, and ensure that the vents remain unobstructed. Next, place the seedling tray 2 on the base 1, and ensure that the block 28 can effectively limit the seedling tray 2.

[0019] Embodiment 2: This embodiment differs from the embodiment 1 in that the technical solution includes: a loosening mechanism for loosening the soil is provided at the upper end of the base 1, and a driving structure is provided at the lower end of the base 1; The loosening mechanism includes a support 3, which is fixedly connected to one side of the upper end of the base 1. The support 3 is fixedly connected to a circular shaft 4. Two symmetrically arranged extrusion springs 5 are sleeved at both ends of the circular shaft 4. One end of the two extrusion springs 5 is fixedly connected to an extrusion block 6. The extrusion block 6 is slidably connected to the circular shaft 4. A sleeve 7 is rotatably connected in the middle of the circular shaft 4. The outer wall of the sleeve 7 is fixedly connected to a limiting block 8. A guide groove 9 is provided at the upper end of the support 3. A slider 10 is slidably connected to the guide groove 9. A clamping block 11 is fixedly connected to the upper end of the slider 10. A limiting groove 12 is provided at the upper end of the clamping block 11. One side of the clamping block 11 is fixedly connected to an extrusion shaft 13. One side of the sleeve 7 is fixedly connected to a bracket 14. One side of the bracket 14 is fixedly connected to a pressing plate 15. One side of the pressing plate 15 is fixedly connected to a number of loosening needles 16. The pressure plate 15 is slidably connected to a symmetrically arranged transmission rod 17, one end of the transmission rod 17 is fixedly connected to a transmission plate 18, and the other ends of the two transmission rods 17 are fixedly connected to a scraper 19, which is slidably connected to a plurality of loosening needles 16. The outer walls of the transmission rods 17 are each sleeved with a return spring 20, one end of the two return springs 20 is respectively fixedly connected to the pressure plate 15, and the other end of the return spring 20 is respectively fixedly connected to the transmission plate 18; The driving structure includes a motor 21 and a rotating shaft 22. The motor 21 is fixedly mounted at the lower end of the base 1. The output end of the motor 21 is fixedly connected to an eccentric wheel 23. The rotating shaft 22 is fixedly connected to one side of the base 1. The rotating shaft 22 is fixedly connected to an extrusion plate 24. An extrusion groove 25 is provided at the upper end of the extrusion plate 24. The extrusion groove 25 is slidably connected to the extrusion shaft 13. A rectangular plate 26 is fixedly connected to the lower end of the extrusion plate 24. The rectangular plate 26 fits the eccentric wheel 23. A groove is provided on one side of the pressure plate 15. The horizontal length of the groove is greater than 12 cm and the vertical depth of the groove is greater than 5 cm. The loosening needle 16 is made of titanium alloy and has a diameter of 2 mm. The lower end of the loosening needle 16 is designed with a conical structure. The extrusion block 6 is slidably connected to the circular shaft 4. The limit groove 12 is designed with an arc structure, and the limit block 8 is embedded in the limit groove 12.

[0020] When the soil in the seedling tray 2 is lumped, the pressing plate 15 rotates around the circular axis 4. When the pressing plate 15 rotates to the upper end of the seedling tray 2, the loosening needle 16 is inserted into the soil of the seedling tray 2, the motor 21 is started, and the output end of the motor 21 drives the eccentric wheel 23. The rotating eccentric wheel 23 is squeezed by the rectangular plate 26. The squeezed rectangular plate 26 drives the squeezing plate 24 to rotate around the rotating shaft 22. The rotating squeezing plate 24 squeezes the squeezing shaft 13 through the squeezing groove 25. The squeezed squeezing shaft 13 then drives the limit block 8 to move through the block 11. The moving limit block 8 then drives the bracket 14 to move through the sleeve 7. The moving bracket 14 then drives the loosening needle 16 to move through the pressing plate 15. During the movement, the squeezing spring 5 squeezes the sleeve 7 through the squeezing block 6, and the limit block 8 fixed on the outer wall of the sleeve 7 is engaged with the block 11. Therefore, during the process of the eccentric wheel 23, the squeezing spring 5 always applies squeezing force to the squeezing plate 24. 24 drives the rectangular plate 26 and the eccentric wheel 23, and the extrusion plate 24 is made to swing back and forth through the extrusion action of the extrusion spring 5 and the pressure action of the eccentric wheel 23. The reciprocating extrusion plate 24 extrudes the shaft 13 through the extrusion groove 25, and the moving extrusion shaft 13 drives the limit block 8 to move through the block 11. The moving limit block 8 drives the bracket 14 to move through the sleeve 7. The moving bracket 14 drives the pressing plate 15 to move, and the moving pressing plate 15 drives the loosening needle 16 to swing inside the soil. The loosening needle 16 is used to loosen the agglomerated soil and improve its compaction condition. After the loosening is completed, one palm is inserted into the groove opened by the pressing plate 15, and the pressing plate 15 is rotated 15 degrees through the groove. The other palm presses the transmission plate 18, and the transmission plate 18 drives the transmission rod 17 to move. The moving transmission rod 17 drives the scraper 19 to move, and the moving scraper 19 scrapes the soil attached to the surface of the loosening needle 16 into the seedling tray 2.

[0021] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice seedling cultivation device, comprising a base (1), wherein a seedling tray (2) is provided at the upper end of the base (1); Its characteristics are: The upper end of the base (1) is provided with a loosening mechanism for loosening the soil, and the lower end of the base (1) is provided with a driving structure; The loosening mechanism comprises a support (3), the support (3) being fixedly connected to one side of the upper end of the base (1), the support (3) being fixedly connected to a circular shaft (4), two symmetrically arranged extrusion springs (5) being sleeved at both ends of the circular shaft (4), one end of each of the two extrusion springs (5) being fixedly connected to an extrusion block (6), the extrusion block (6) being slidably connected to the circular shaft (4), the middle of the circular shaft (4) being rotatably connected to a sleeve (7), the outer wall of the sleeve (7) being fixedly connected to a limit block (8), and the support A guide groove (9) is provided at the upper end of the seat (3), a slider (10) is slidably connected to the guide groove (9), a clamping block (11) is fixedly connected to the upper end of the slider (10), a limiting groove (12) is provided at the upper end of the clamping block (11), an extrusion shaft (13) is fixedly connected to one side of the clamping block (11), a bracket (14) is fixedly connected to one side of the sleeve (7), a pressure plate (15) is fixedly connected to one side of the bracket (14), and a plurality of loosening needles (16) are fixedly connected to one side of the pressure plate (15); A symmetrically arranged transmission rod (17) is slidably connected to the pressure plate (15), one end of the transmission rod (17) is fixedly connected to a transmission plate (18), and the other ends of the two transmission rods (17) are fixedly connected to a scraper (19), and the scraper (19) is slidably connected to a plurality of loosening needles (16). The outer wall of the transmission rod (17) is sleeved with a return spring (20), one end of the two return springs (20) is fixedly connected to the pressure plate (15), and the other end of the return spring (20) is fixedly connected to the transmission plate (18).

2. A rice seedling cultivation device according to claim 1, characterized in that: The driving structure comprises a motor (21) and a rotating shaft (22), wherein the motor (21) is fixedly mounted on the lower end of the base (1), an eccentric wheel (23) is fixedly connected to the output end of the motor (21), the rotating shaft (22) is fixedly connected to one side of the base (1), the rotating shaft (22) is fixedly connected to an extrusion plate (24), an extrusion groove (25) is provided at the upper end of the extrusion plate (24), the extrusion groove (25) is slidably connected to the extrusion shaft (13), and a rectangular plate (26) is fixedly connected to the lower end of the extrusion plate (24), and the rectangular plate (26) is in contact with the eccentric wheel (23).

3. The rice seedling cultivation device according to claim 1, characterized in that: A groove is provided on one side of the pressing plate (15), wherein the horizontal length of the groove is greater than 12 cm and the vertical depth of the groove is greater than 5 cm.

4. The rice seedling cultivation device according to claim 1, characterized in that: The loosening needle (16) is made of titanium alloy, has a diameter of 2 mm, and has a conical structure at the lower end.

5. The rice seedling cultivation device according to claim 1, characterized in that: The extrusion block (6) is slidably connected to the circular shaft (4), the limiting groove (12) is designed as an arc structure, and the limiting block (8) is embedded in the limiting groove (12).

6. The rice seedling cultivation device according to claim 1, characterized in that: A plurality of square grooves are provided at the upper end of the seedling raising tray (2), and a plurality of ventilation holes are provided at the seedling raising tray (2).

7. The rice seedling cultivation device according to claim 1, characterized in that: The lower end of the base (1) is fixedly connected to a support frame (27), and the four corners of the upper end of the base (1) are fixedly connected to stoppers (28), and the stoppers (28) are arranged corresponding to the seedling tray (2).

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