Precision seeder for seeding saline-alkaline tolerant rice and seeding method thereof

Abstract

The invention relates to a precision seeder for seeding saline-alkaline tolerant rice and a seeding method thereof, and relates to the technical field of rice seeding. Comprising a walking frame, two sets of walking wheels are symmetrically arranged at the bottom of the walking frame, a storage hopper is arranged above the walking frame, a two-way air cylinder is arranged on the walking frame below the storage hopper, fixing blocks are installed at the two output ends of the two-way air cylinder, discharging hoppers are arranged on the fixing blocks, and a conveying piece for conveying rice seeds to the discharging hoppers is arranged on the walking frame. According to the rice seeding machine, the following problems existing in the rice seeding process in the prior art can be solved: rice seeds conveyed in the conveying pipe are uniformly separated into two parts by arranging the separation barrel and the flow dividing piece, the same quantity of the rice seeds output from the discharging hopper is ensured, and the situation that the rice seeds are too many or too few locally is avoided. The whole seeding quality is improved, the crushing part is arranged and can effectively crush hardened or blocked soil, the land is pretreated, and the rice planting effect is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of rice sowing, and in particular to a precision seeder for salt-alkali tolerant rice sowing and a sowing method thereof. Background Art

[0002] Salt-alkali tolerant rice planting refers to the planting of rice varieties that can adapt to high salt and high alkaline soil conditions in saline-alkali environments. This type of rice is also called "salt-tolerant rice" or "sea rice", and its characteristic is that it can grow normally, develop and complete its entire life cycle in soils with high salinity and alkali content.

[0003] The sowing of salt-alkali tolerant rice is an agricultural technology aimed at utilizing saline-alkali land resources and increasing food production. The precision sowing technology of salt-alkali tolerant rice is of great significance for improving the yield and quality of saline-alkali land rice and the sustainability of agricultural production. It can not only improve agricultural production efficiency and output, but also promote the rational use of resources and environmental protection, and is an important means to achieve sustainable agricultural development.

[0004] For example, Chinese patent publication number CN116897652A discloses a dry direct seeding machine for salt-alkali tolerant rice;

[0005] The invention can solve the following problems existing in the prior art in the process of sowing rice seeds: the row spacing and plant spacing of rice cannot be adjusted, so when the row spacing or plant spacing is too small, the rice seedlings will be dense, which will easily affect the growth of rice; when the row spacing or plant spacing is too large, the utilization rate of land will be reduced, resulting in land waste; the number of rice seeds to be sown cannot be controlled according to the planting conditions, and then the normal growth of rice after sowing cannot be ensured if the number of rice seeds is too much or too little; the rice seeds can be sown in the soil according to a certain number according to the planting requirements; the sowing plant spacing and row spacing of rice seeds can also be adjusted according to the sowing requirements, the structure is simple, and the adjustment process is simple and fast.

[0006] However, the above device still has some shortcomings in actual use:

[0007] 1. The above device can automatically divide the rice seeds discharged from the feeding port into two batches through the V-shaped diverter plate and sow the rice seeds in the soil through the sowing mechanism, so that two rows of rice seeds can be sown at the same time, thereby improving the sowing efficiency. However, it cannot ensure that the number of rice seeds dropped in the two rows of rice is consistent, resulting in uneven sowing, resulting in reduced yield, uneven growth and other consequences.

[0008] 2. The above device lacks a structure to treat compacted soil. Saline-alkali soil itself contains high salt and alkaline substances. The compacted soil structure will hinder water penetration and cause salt to accumulate on the soil surface. Failure to effectively reduce soil salinity will cause salt damage to rice roots, affecting normal root growth and nutrient absorption, resulting in poor plant growth.

[0009] Therefore, based on the above-stated views, it is of great significance to improve and perfect the dry direct seeding machinery for salt-alkali tolerant rice, which can not only ensure that the rice seeds in the two rows fall evenly, but also effectively deal with the compacted soil, promote the healthy growth of the root system and the efficient absorption of nutrients. Summary of the invention

[0010] In order to solve the above problems, the present invention provides a precision seeder for sowing salt-alkali tolerant rice and a sowing method thereof.

[0011] On the one hand, a precision seeder for salt-alkali tolerant rice sowing comprises a traveling frame, two sets of traveling wheels are symmetrically arranged at the bottom of the traveling frame, a storage hopper is arranged above the traveling frame, a bidirectional cylinder is arranged on the traveling frame below the storage hopper, fixed blocks are installed at both output ends of the bidirectional cylinder, a discharge hopper is arranged on the fixed block, and a conveying member for conveying rice seeds to the discharge hopper is arranged on the traveling frame.

[0012] The conveying member includes a separation cylinder, which is arranged below the storage hopper, and the separation cylinder and the bottom of the separation box are commonly connected with a square conveying pipe, and a discharge port is symmetrically opened along the width direction of the traveling frame on the side of the separation cylinder close to the traveling wheel, and discharge cylinders corresponding to the discharge port are symmetrically arranged on the separation cylinder, and a discharge pipe is commonly arranged between the discharge cylinder and the discharge hopper.

[0013] Preferably, the traveling frame is provided with a diverter component for diverting the rice seeds transported in the conveying pipe, and the diverter component includes a rotating shaft, which is rotatably arranged in the separation cylinder along the axis of the separation cylinder, and one end of the separation cylinder is passed through, and a section of the rotating shaft located in the separation cylinder has two groups of baffle plates symmetrically arranged along its axis, and an arc-shaped abutment plate is commonly installed between each group of baffle plates.

[0014] Preferably, the discharge pipe is configured as a stretchable hose.

[0015] Preferably, a quantity control structure is also provided on the walking frame, and the quantity control structure includes a quantity control plate. A slide groove is provided on the conveying pipe, and the quantity control plate is slidably arranged inside the slide groove. A through hole with the same size as the inner diameter of the conveying pipe is provided at one end of the quantity control plate.

[0016] Preferably, a bidirectional threaded groove is formed at one end of the rotating shaft outside the separation cylinder, a telescopic rod is installed on the walking frame, a connecting plate is provided at the telescopic end of the telescopic rod, one end of the connecting plate is connected to the quantity control plate, and a connecting groove is formed at the other end, a driving block is provided inside the connecting groove, and the driving block is slidably arranged in the threaded groove.

[0017] Preferably, a barrier to prevent rice seeds from leaking is provided in the conveying pipe, the barrier comprises a baffle, a barrier groove is provided on the side wall of the conveying pipe, the baffle is slidably arranged in the barrier groove by a tension spring, a connecting rope is provided at the bottom of the baffle, and the other end of the connecting rope is connected to the connecting plate.

[0018] Preferably, a crushing piece is also provided on the walking frame, and the crushing piece includes a two-way telescopic rod, both ends of the two-way telescopic rod are equipped with a ribbed plate, and the ribbed plate is connected to a fixed block through a connecting rod, and a crushing auger is tilted and rotatably provided inside the ribbed plate, and a crushing shaft is rotatably installed at one end of the ribbed plate close to the discharge hopper, and a plurality of L-shaped crushing rods are spirally connected to the crushing shaft, and the crushing rods are all arranged to be pointed.

[0019] Preferably, both sides of the convex plate are inclined inwards.

[0020] On the other hand, a precision sowing method for sowing salt-alkali tolerant rice is as follows:

[0021] S1. Rice seed placement: The rice seeds are placed in the storage hopper, and the rice seeds in the storage hopper enter the separation cylinder through the conveying pipe;

[0022] S2, rice seed transportation: control the through holes on the control plate to correspond to the inside of the transportation pipe, so that the rice seeds inside the transportation pipe fall onto the abutment plate;

[0023] S3, rice seed sowing: The rice seeds in the conveying pipe are driven by the rotating shaft to fall into the gap between the two sets of baffle plates, and the baffle plates are used to carry the rice seeds to rotate and move in the separation cylinder until the rice seeds fall from the discharge port into the discharge pipe under the action of gravity, and then enter the discharge hopper for sowing;

[0024] S4. Soil crushing: When the traveling frame moves, the crushing shaft rotates with the crushing machine. During the rotation, the crushing rod will contact the overturned soil and crush the soil.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The present invention evenly separates the rice seeds transported in the transport pipe into two parts by setting a separation cylinder and a diverter, ensuring that the number of rice seeds output from the discharge hopper is the same, avoiding the situation where there are too many or too few rice seeds in some parts. This helps each rice plant obtain relatively balanced growth space and resources, such as sunlight, water and nutrients, and improves the overall sowing quality.

[0027] Second, the present invention provides a crushing piece, which can effectively break up compacted or lumpy soil, pre-treat the land, ensure the rice planting effect, and create favorable conditions for rice growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the conveying member of the present invention.

[0031] Figure 3 It is a schematic diagram of the structure inside the separation cylinder of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the separation cylinder of the present invention from another perspective.

[0033] Figure 5 It is a structural schematic diagram of the quantity control structure of the present invention.

[0034] Figure 6 The present invention Figure 5 Schematic diagram of the structure at A in the middle.

[0035] Figure 7 It is a schematic structural diagram of the crushing element of the present invention.

[0036] Figure 8 It is a structural schematic diagram of the shaped plate of the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the conical plate of the present invention from another angle.

[0038] In the figure, 1. walking frame; 10. walking wheel; 11. storage hopper; 12. two-way cylinder; 13. fixed block; 14. discharge hopper; 2. conveying member; 20. separation barrel; 21. conveying pipe; 22. discharge port; 23. discharge barrel; 24. discharge pipe; 3. diverter; 30. rotating shaft; 31. baffle plate; 32. abutment plate; 4. quantity control structure; 40. quantity control plate; 41. through hole; 50. telescopic rod; 51. connecting plate; 6. baffle; 60. baffle; 61. baffle groove; 62. connecting rope; 7. crushing member; 70. two-way telescopic rod; 71. convex plate; 72. crushing auger; 73. crushing shaft; 74. crushing rod; 8. synchronous member; 80. synchronous shaft. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-Figure 9 Embodiments of the present invention are described in detail.

[0040] The embodiment of the present application discloses a precision seeder and a sowing method for salt-alkali tolerant rice, which illustrate that the present invention is mainly used in the process of rice sowing, and can avoid the problem of different numbers of rice seeds planted in different rows in terms of technical effect; further, the present invention can also solve the problem of poor planting effect caused by the lack of a structure for processing compacted soil blocks.

[0041] Embodiment 1:

[0042] Reference Figure 1 and Figure 2 As shown, it includes a traveling frame 1, two sets of traveling wheels 10 are symmetrically arranged at the bottom of the traveling frame 1, a storage hopper 11 is arranged above the traveling frame 1, and rice seeds are placed in the storage hopper 11, a two-way cylinder 12 is arranged on the traveling frame 1 below the storage hopper 11, and fixed blocks 13 are installed at both output ends of the two-way cylinder 12, and a discharge hopper 14 is arranged on the fixed block 13, and a conveying member 2 for conveying rice seeds to the discharge hopper 14 is arranged on the traveling frame 1.

[0043] By controlling the distance between the fixed blocks 13 through the bidirectional cylinder 12, the position of the discharge hopper 14 on the fixed block 13 can be adjusted to meet the planting needs of different spacings.

[0044] The rice seeds are transported from the storage hopper 11 to the discharging hopper 14 via the conveying member 2 and then evenly spread on the saline-alkali land by the discharging hopper 14 .

[0045] The conveying member 2 includes a separation cylinder 20, which is arranged below the storage hopper 11, and the separation cylinder 20 and the bottom of the separation box are connected to a square conveying pipe 21. The rice seeds transported in the conveying pipe 21 are evenly separated into two parts by the separation cylinder 20, so as to ensure that the number of rice seeds output in the discharge hopper 14 is the same, and avoid the situation where there are too many or too few local rice seeds. This helps each rice plant to obtain relatively balanced growth space and resources, such as sunlight, water and nutrients, and improves the overall sowing quality. A discharge port 22 is symmetrically provided on the side of the separation cylinder 20 close to the walking wheel 10 along the width direction of the walking frame 1, and a discharge cylinder 23 corresponding to the discharge port 22 is symmetrically provided on the separation cylinder 20, and a discharge pipe 24 is commonly provided between the discharge cylinder 23 and the discharge hopper 14. After the separation of the separation cylinder 20 is completed, the rice seeds will enter the discharge pipe 24 through the discharge port 22, and enter the discharge hopper 14 through the discharge pipe 24.

[0046] The discharge pipe 24 is designed as a retractable hose, which can flexibly adapt to the movement requirements of the two discharge hoppers 14 and achieve smooth stretching.

[0047] Reference Figure 3 As shown, it is a schematic diagram of the structure in which the separation cylinder 20 delivers the transported rice seeds into the discharge pipe 24; specifically, a diverter 3 for diverting the rice seeds transported in the delivery pipe 21 is provided on the walking frame 1, and the diverter 3 includes a rotating shaft 30, and the rotating shaft 30 is rotatably arranged in the separation cylinder 20 along the axis of the separation cylinder 20, and one end of the separation cylinder 20 is passed through, and a section of the rotating shaft 30 located in the separation cylinder 20 is symmetrically provided with two groups of baffle plates 31 along its axis, and an arc-shaped abutment plate 32 is installed between each group of baffle plates 31.

[0048] The rice seeds in the conveying pipe 21 will fall into the gap between the two sets of baffle plates 31. When the rotating shaft 30 rotates, the baffle plates 31 will rotate and move with the rice seeds in the separation cylinder 20 until they move to a position corresponding to one of the discharge ports 22. Then, they will fall from the discharge port 22 into the discharge pipe 24 under the action of gravity.

[0049] On the contrary, when the rotating shaft 30 rotates in the reverse direction, the rice seeds can be transported to another discharge port 22 and transported to the corresponding discharge pipe 24 .

[0050] When the baffle plates 31 rotate, the abutment plates 32 between each group of baffle plates 31 will contact the connection between the conveying pipe 21 and the baffle plates 31 to prevent the rice seeds from falling into the separation cylinder 20 before the next batch of rice seeds is conveyed.

[0051] Reference Figure 3 and Figure 4As shown, it is a schematic diagram of the structure for controlling the amount of rice seeds transported in the conveying pipe 21; specifically, a quantity control structure 4 is also provided on the walking frame 1, and the quantity control structure 4 includes a quantity control plate 40. A slide groove is provided on the conveying pipe 21, and the quantity control plate 40 is slidably arranged inside the slide groove. A through hole 41 with the same size as the inner diameter of the conveying pipe 21 is provided at one end of the quantity control plate 40. When the rice seeds need to be transported, the quantity control plate 40 is controlled to slide inside the slide groove so that the through hole 41 on the quantity control plate 40 corresponds to the inside of the conveying pipe 21. At this time, the rice seeds inside the conveying pipe 21 will fall onto the abutment plate 32.

[0052] In addition, by controlling the sliding distance of the control plate 40, the overlapping area of ​​the through hole 41 and the conveying pipe 21 can be controlled. The larger the area, the more rice seeds will fall in the same time, and vice versa. The number of rice seeds that fall can be controlled by the control plate 40 to adapt to the planting needs of different types of rice seeds and land.

[0053] Reference Figure 4 and Figure 5 As shown, it is a schematic diagram of the structure that drives the control plate 40 to slide; specifically, a bidirectional threaded groove begins to be formed at one end of the rotating shaft 30 located outside the separation cylinder 20, a telescopic rod 50 is installed on the walking frame 1, and a connecting plate 51 is provided at the telescopic end of the telescopic rod 50, one end of the connecting plate 51 is connected to the control plate 40, and a connecting groove is opened at the other end, a driving block (not shown in the figure) is arranged inside the connecting groove, and the driving block is slidably arranged in the threaded groove.

[0054] The shaft 30 is driven externally to rotate. During the rotation, the driving block slides inside the thread groove, thereby driving the connecting plate 51 to move along the length direction of the rotation. The movement of the control plate 40 can be controlled by controlling the rotation of the shaft 30.

[0055] It should be noted that since the rotating shaft 30 also needs to control the rotation of the baffle plate 31 to transport the rice seeds to the discharge port 22, and the rotating shaft 30 needs to control the movement of the control plate 40, the rotation angle is not fixed. This will cause the baffle plate 31 on the rotating shaft 30 to rotate with the rice seeds. If the discharge port 22 is small, it cannot be aligned with the discharge port 22. Therefore, the discharge port 22 in the present invention is designed to be wider to ensure that the rice seeds can be delivered smoothly no matter how the rotating shaft 30 rotates.

[0056] Reference Figure 4 , Figure 5 and Figure 6As shown, it is a schematic diagram of the structure for preventing rice seeds from leaking; specifically, a barrier 6 for preventing rice seeds from leaking is provided in the conveying pipe 21. When the amount control plate 40 moves, the through hole 41 on the amount control plate 40 will be connected with the slide groove, which will cause the rice seeds in the conveying pipe 21 to fall from the connection between the through hole 41 and the slide groove, causing waste of rice seeds. Therefore, the role of setting the barrier 6 is to block the connection between the through hole 41 and the slide groove without affecting the sliding of the amount control plate 40.

[0057] The blocking member 6 includes a baffle plate 60 . A blocking groove 61 is formed on the side wall of the delivery pipe 21 . The baffle plate 60 is slidably disposed in the blocking groove 61 via a tension spring.

[0058] Before the quantity control plate 40 slides, the baffle 60 contacts the surface of the quantity control plate 40. When part of the sliding through hole 41 of the quantity control plate 40 coincides with the inside of the output pipe, the baffle 60 moves toward the direction of the quantity control plate 40 to block the connection between the through hole 41 and the slide groove to prevent rice seeds from falling. During the movement of the quantity control plate 40, the baffle 60 is always located inside the through hole 41 and will not affect the sliding of the quantity control plate 40.

[0059] On the contrary, when the volume control plate 40 needs to block the inside of the delivery pipe 21 , the volume control plate 40 returns to the blocking groove 61 under the action of the tension spring.

[0060] A connecting rope 62 is provided at the bottom of the baffle 60, and the other end of the connecting rope 62 is connected to the connecting plate 51. When the connecting plate 51 drives the through hole 41 on the volume control plate 40 to move into the inside of the conveying pipe 21, the baffle 60 will be pulled downward synchronously through the connecting rope 62. It should be noted that the blocking groove 61 is provided on both the upper and lower sides of the volume control plate 40. When the baffle 60 moves downward, it will enter the blocking groove 61 at the lower end of the volume control plate 40. The depth to which the baffle 60 enters varies with the distance the volume control plate 40 moves.

[0061] Reference Figure 7 and Figure 8 As shown, it is a schematic diagram of the structure for pre-treating the soil for planting; specifically, a crushing member 7 is also provided on the walking frame 1. Due to the characteristics of saline-alkali land, when planting rice on saline-alkali land, the land needs to be pre-treated to ensure the planting effect of rice. Therefore, it is necessary to use the crushing member 7 to break up the compacted or lumpy soil to facilitate the planting of rice and provide a beneficial growth environment for rice.

[0062] The crushing member 7 includes a two-way telescopic rod 70, and a convex plate 71 is installed at both ends of the two-way telescopic rod 70, and the convex plate 71 is connected to the fixed block 13 through a connecting rod. The convex plate 71 can move synchronously with the discharge hopper 14 through the fixed block 13 on the two-way cylinder 12. A crushing auger 72 is tilted and rotatably arranged inside the convex plate 71, and the soil can be turned up during the rotation process through the tilted crushing auger 72. A crushing shaft 73 is rotatably installed at one end of the convex plate 71 near the discharge hopper 14, and a plurality of L-shaped crushing rods 74 are spirally connected to the crushing shaft 73. The crushing rods 74 are all set to be sharp angles. The crushing shaft 73 rotates with the crushing process. During the rotation process, the crushing rods 74 will contact the turned-up soil and crush the soil to prevent some excessively large soil from affecting the growth of rice seeds.

[0063] Both sides of the U-shaped plate 71 are inclined inwardly, so that the turned-up soil will be blocked by the U-shaped plate 71 and fall back to the original place.

[0064] Embodiment 2:

[0065] On the basis of the first embodiment, in order to further improve the dynamism of the device, a synchronization member 8 is also proposed, which is conducive to processing the soil according to the moving distance of the traveling frame 1.

[0066] Reference Figure 8 and Fig. 9 As shown, it is a schematic diagram of the structure that drives the crushing auger 72 and the crushing shaft 73 to rotate and work synchronously; specifically, the synchronous member 8 includes a synchronous shaft 80, which is rotatably arranged on one side of the convex plate 71, one end of the synchronous shaft 80 is connected to the output shaft of the crushing auger 72 through a universal joint, and the other end is connected to the crushing shaft 73 through a bevel gear.

[0067] The synchronous rotation of the crushing auger 72 and the crushing shaft 73 is achieved through the synchronous shaft 80 .

[0068] The crushing shaft 73 is connected to the output shaft of the running wheel 10 through a belt. When the running wheel 10 rotates, it will drive the crushing shaft 73 to rotate, so that the soil blocks can be processed according to the distance the running wheel 10 moves. During the sowing process, the amount of soil blocks processed can be accurately controlled according to the distance the running wheel 10 moves, ensuring that every inch of land is evenly processed. This effectively reduces the necessity of manual operation and significantly improves the efficiency of soil block processing.

[0069] During operation: In the first step, the rice seeds are placed in the storage hopper 11 , and the rice seeds in the storage hopper 11 enter the separation cylinder 20 through the conveying pipe 21 .

[0070] Step 2: The shaft 30 is driven externally to rotate. During the rotation, the driving block will slide inside the threaded groove, and at this time, it can drive the connecting plate 51 to move along the length direction of the rotation, so that the through hole 41 on the control plate 40 corresponds to the inside of the conveying tube 21, so that the rice seeds inside the conveying tube 21 fall onto the abutment plate 32.

[0071] Step 3: The rotating shaft 30 then rotates in the opposite direction, and the rice seeds in the conveying pipe 21 will fall into the gap between the two sets of baffle plates 31. When the rotating shaft 30 rotates, the baffle plates 31 will rotate and move with the rice seeds in the separation cylinder 20 until they move to a position corresponding to one of the discharge ports 22. Under the action of gravity, the rice seeds will fall from the discharge port 22 into the discharge pipe 24, and enter the discharge hopper 14 through the discharge pipe 24 for sowing.

[0072] Step 4: During the movement of the traveling frame 1, the crushing shaft 73 rotates to crush the soil. During the rotation, the crushing rod 74 will contact the turned-up soil and crush the soil to prevent some overly large soil from affecting the growth of rice seeds.

[0073] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A precision seeder for sowing salt-alkali tolerant rice, comprising a traveling frame (1), wherein two sets of traveling wheels (10) are symmetrically arranged at the bottom of the traveling frame (1), characterized in that: A material storage hopper (11) is arranged above the traveling frame (1), a bidirectional cylinder (12) is arranged on the traveling frame (1) below the material storage hopper (11), fixed blocks (13) are installed at both output ends of the bidirectional cylinder (12), a material discharge hopper (14) is arranged on the fixed block (13), and a conveying member (2) for conveying rice seeds to the material discharge hopper (14) is arranged on the traveling frame (1); The conveying member (2) comprises a separation cylinder (20), the separation cylinder (20) is arranged below the storage hopper (11), and the separation cylinder 20 and the bottom of the separation box are connected to a square conveying pipe (21), a discharge port (22) is symmetrically opened along the width direction of the walking frame (1) on the side of the separation cylinder (20) close to the walking wheel (10), and a discharge cylinder (23) corresponding to the discharge port (22) is symmetrically arranged on the separation cylinder (20), and a discharge pipe (24) is commonly arranged between the discharge cylinder (23) and the discharge hopper (14).

2. A precision seeder for salt-alkali tolerant rice sowing according to claim 1, characterized in that: The traveling frame (1) is provided with a diverter (3) for diverting the rice seeds transported in the conveying pipe (21), the diverter (3) comprising a rotating shaft (30), the rotating shaft (30) being rotatably arranged in the separation barrel (20) along the axis of the separation barrel (20), and one end of the rotating shaft (30) passing through the separation barrel (20), a section of the rotating shaft (30) located in the separation barrel (20) having two groups of baffle plates (31) symmetrically arranged along its axis, and an arc-shaped abutment plate (32) being installed between each group of baffle plates (31).

3. A precision seeder for salt-alkali tolerant rice sowing according to claim 2, characterized in that: The discharge pipe (24) is configured as a stretchable hose.

4. The precision seeder for salt-alkali tolerant rice sowing according to claim 1, characterized in that: The walking frame (1) is also provided with a quantity control structure (4), the quantity control structure (4) comprising a quantity control plate (40), a slide groove is provided on each of the conveying pipes (21), the quantity control plate (40) is slidably arranged inside the slide groove, and a through hole (41) having the same inner diameter as the conveying pipe (21) is provided at one end of the quantity control plate (40).

5. The precision seeder for salt-alkali tolerant rice sowing according to claim 2, characterized in that: A bidirectional threaded groove is formed at one end of the rotating shaft (30) located outside the separation cylinder (20). A telescopic rod (50) is installed on the walking frame (1). A connecting plate (51) is provided at the telescopic end of the telescopic rod (50). One end of the connecting plate (51) is connected to the control plate (40), and the other end is provided with a connecting groove. A driving block is provided inside the connecting groove, and the driving block is slidably arranged in the threaded groove.

6. A precision seeder for salt-alkali tolerant rice sowing according to claim 5, characterized in that: A barrier (6) for preventing rice seeds from leaking is arranged in the conveying pipe (21), and the barrier (6) comprises a baffle (60). A barrier groove (61) is opened on the side wall of the conveying pipe (21), and the baffle (60) is slidably arranged in the barrier groove (61) through a tension spring. A connecting rope (62) is arranged at the bottom of the baffle (60), and the other end of the connecting rope (62) is connected to the connecting plate (51).

7. The precision seeder for salt-alkali tolerant rice sowing according to claim 1, characterized in that: The walking frame (1) is also provided with a crushing member (7), the crushing member (7) comprising a bidirectional telescopic rod (70), both ends of the bidirectional telescopic rod (70) are provided with a convex plate (71), and the convex plate (71) is connected to the fixed block (13) through a connecting rod, a crushing auger (72) is provided inside the convex plate (71) in an inclined and rotatable manner, a crushing shaft (73) is rotatably provided at one end of the convex plate (71) near the discharge hopper (14), a plurality of L-shaped crushing rods (74) are spirally connected to the crushing shaft (73), and the crushing rods (74) are all arranged in a pointed shape.

8. The precision seeder for salt-alkali tolerant rice sowing according to claim 7, characterized in that: Both sides of the convex plate (71) are inclined inwards.

9. A precision seeding method for salt-alkali tolerant rice seeding, comprising a precision seeding machine for salt-alkali tolerant rice seeding according to any one of claims 1 to 8, characterized in that: The precision seeding method used for salt-alkali tolerant rice seeding is as follows: S1. Placing rice seeds: placing rice seeds in the storage hopper (11), and the rice seeds in the storage hopper (11) enter the separation cylinder (20) through the conveying pipe (21); S2, rice seed transportation: controlling the through hole (41) on the quantity control plate (40) to correspond to the inside of the transportation pipe (21), so that the rice seeds inside the transportation pipe (21) fall onto the abutment plate (32); S3, rice seed sowing: the rice seeds in the conveying pipe (21) are driven to fall into the gap between the two sets of baffle plates (31) by the rotating shaft (30), and the baffle plates (31) are used to carry the rice seeds to rotate and move in the separation cylinder (20) until the rice seeds fall from the discharge port (22) into the discharge pipe (24) under the action of gravity, and then enter the discharge hopper (14) for sowing; S4. Soil crushing: During the movement of the traveling frame (1), the crushing shaft (73) rotates to crush the soil. During the rotation, the crushing rod (74) contacts the turned-up soil to crush the soil.

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