Seed breeding device and method

Abstract

The invention discloses a seed breeding device and method, and belongs to the technical field of seed screening. A seed breeding device comprises a water tank and a seed frame, a partition beam is fixedly installed in the water tank, a cross beam is fixedly installed between the partition beam and the side wall of the water tank, the seed frame is installed on the cross beam, a swing rod is arranged at one end of the partition beam, and a shifting plate is installed on the swing rod. The output end of the reciprocating lifting assembly is fixedly connected with the swing rod, a through groove is formed in the limiting plate, the swing rod is installed in the through groove in a sliding mode, a sliding plate is fixedly installed on the limiting plate, an insertion plate is fixedly installed on the sliding plate, and the insertion plate is inserted into the through groove along with swinging of the swing rod. When the shifting plate moves in water, water can be pushed to form water flow, the seeds floating on the surface are rapidly separated through the water flow, and the seed separation effect is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of seed screening, and particularly to a seed breeding device and method. Background Art

[0002] With the growth of the global population and the increasing demand for food security, agricultural production is facing unprecedented challenges. In order to improve crop yields, enhance crop quality, and strengthen crop stress resistance, breeding technology has become one of the key areas in the development of modern agriculture.

[0003] Traditional seed breeding methods mainly include selective breeding, cross-breeding, etc. Although these methods have greatly promoted the improvement of crop varieties and the increase of yields in history, they often have problems such as long cycles, low efficiency, and difficulty in precisely controlling target traits. Especially in the face of changing climate conditions and complex pest and disease pressures, traditional breeding methods are difficult to respond quickly and cultivate new varieties with strong adaptability.

[0004] As an important step in ensuring high-quality seeds, traditional seed screening mainly relies on manual operations or simple mechanical screening based on basic physical characteristics, such as size, weight, etc. However, this method not only has a large labor intensity and low efficiency, but also cannot accurately identify and distinguish seeds with excellent genetic characteristics, thus limiting the further development of breeding work. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that farmers and researchers usually select plump and healthy seeds by hand in the prior art. This method is time-consuming and laborious, and is easily affected by human factors, resulting in unstable screening results. A seed breeding device and method are proposed.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A seed breeding device includes a water tank and a seed frame. A dividing beam is fixedly installed in the water tank. A cross beam is fixedly installed between the dividing beam and the side wall of the water tank. The seed frame is installed on the cross beam. One end of the dividing beam is provided with a swing rod, and a dial plate is installed on the swing rod for dialing the water in the water tank to one side. It further includes: a reciprocating lifting assembly fixedly installed in the water tank, the output end of the reciprocating lifting assembly is fixedly connected to the swing rod, a limiting plate fixedly installed between the dividing beam and the water tank, a through groove is opened on the limiting plate, and the swing rod is slidably installed in the through groove. Wherein, a sliding plate is fixedly installed on the limiting plate, and an insertion plate is fixedly installed on the sliding plate. When the swing rod moves to the end of the stroke of the through groove, the dial plate is separated from the swing rod through the sliding plate.

[0007] In order to separate the rocking arm from the toggle plate, preferably, the through slot is L-shaped, an arcuate slot is provided between the two ends of the through slot, and the curvature of the slide plate is adapted to the arcuate slot.

[0008] In order to achieve the reset of the toggle plate, further, the rocking arm is provided with symmetrically arranged sliding holes, a U-shaped rod is installed between the symmetrical sliding holes through an elastic member, and the toggle plate is rotatably installed on the U-shaped rod.

[0009] In order to drive the rocking arm to move up and down, preferably, the reciprocating lifting assembly includes a mounting plate fixedly mounted on the side wall of the water tank, a top seat is slidably mounted on the mounting plate, a top rod is fixedly mounted on the top seat, the top rod is fixedly connected to the rocking arm, a motor is fixedly mounted on the water tank, an eccentric block abutting against the top seat is fixedly mounted on the output end of the motor, wherein a slide groove is provided on the mounting plate, a first slider adapted to the slide groove is fixedly mounted on the top seat, a first roller is rotatably mounted on the first slider, and the eccentric block abuts against the first roller.

[0010] In order to drive the two seed frames to move back and forth during the up and down movement of the rocking arm, a slide rail is fixedly installed on the mounting plate, and the extension direction of the slide rail and the slide groove are perpendicular to each other. A symmetrically arranged second slider is slidably installed on the slide rail, and a push rod is fixedly installed on the second slider, and the push rod abuts against the seed frame. An L-shaped connecting plate is rotatably installed on the mounting plate, and the L-shaped connecting plate is rotatably connected to the top seat and the second slider respectively.

[0011] In order to position and constrain the installation of the seed frame, further, a symmetrically arranged first limit pin is fixedly installed on the beam, and a groove is provided on the beam between the symmetrical first limit pins. A second roller is fixedly installed on the bottom surface of the groove, and a connecting part is provided on both sides of the seed frame, and a limit groove adapted to the first limit pin is provided on the connecting part.

[0012] In order to drive the seed frame to reset, further, an abutment plate is installed on the beam through an elastic member, and the abutment plate abuts against the connecting portion.

[0013] In order to stir the seeds in the seed frame, a support frame is further fixedly connected between the dividing beam and the bottom surface of the water tank, a stirring rod is rotatably installed in the seed frame, one end of the stirring rod passes through the seed frame and abuts against the support frame, wherein an elastic part is covered on the stirring rod.

[0014] In order to increase the stirring efficiency, further, a shaft sleeve is fixedly installed on the inner wall of the seed frame, the stirring rod is coaxially installed in the shaft sleeve, a spiral groove is opened on the stirring rod, and a second limit pin adapted to the spiral groove is fixedly installed in the shaft sleeve.

[0015] A seed breeding method comprises the following steps: Step 1: Pour the seeds to be screened into the device; Step 2: Under the action of water flow, the seeds are separated into layers according to their density and size; Step 3: Collect the empty shells and bad seeds on the upper layer; Step 4: Collect the seeds at the bottom.

[0016] Compared with the prior art, the present invention provides a seed breeding device and method, which have the following beneficial effects: 1. This seed breeding device uses a motor and an eccentric block to drive a rocking arm to move in a through-groove, thereby separating the rocking arm from the toggle plate. When the toggle plate is reset, the water body is driven to fluctuate to one side, and empty shells or seeds of poor quality float on the water surface and are moved into a recycling box with the water flow. At the same time, when the rocking arm moves up and down, the L-shaped connecting plate drives the second sliders on both sides to move horizontally, which is transmitted to the seed frame through the push rod, causing the seed frame to vibrate back and forth in the horizontal direction. The vibration of the seed frame further promotes the dispersion and separation of seeds in the water, especially for seeds with similar density, which can effectively improve the screening efficiency. 2. In the seed breeding device, when the seed frame performs horizontal reciprocating motion under the action of the push rod, one end of the stirring rod contacts the support frame and is pushed, thereby starting to rotate. The spiral groove on the stirring rod cooperates with the second limit pin in the shaft sleeve, so that the stirring rod can only rotate in a specific direction, ensuring the accuracy of its motion trajectory. The rotational motion of the stirring rod further promotes the mixing and dispersion of seeds in water, especially for seeds with similar densities, which can effectively improve the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a seed breeding device proposed by the present invention; Figure 2 This is a schematic diagram of the crossbeam structure of a seed breeding device proposed by the present invention; Figure 3 Schematic diagram of the reciprocating lifting component structure of a seed breeding device proposed by the present invention Figure 1 ; Figure 4 Schematic diagram of the reciprocating lifting component structure of a seed breeding device proposed by the present invention Figure 2 ; Figure 5Schematic diagram of the limiting plate structure of a seed breeding device proposed by the present invention; Figure 6 Schematic diagram of the internal structure of the seed box of a seed breeding device proposed by the present invention; Figure 7 Schematic diagram of the structure of the stirring rod and the shaft sleeve of a seed breeding device proposed by the present invention.

[0018] In the figure: 1. Water tank; 2. Seed box; 201. Connecting part; 202. Limiting groove; 3. Partition beam; 4. Cross beam; 401. First limiting pin; 402. Groove; 403. Second roller; 5. Rocking bar; 501. Sliding hole; 6. Dialing plate; 7. Reciprocating lifting assembly; 701. Mounting plate; 702. Top seat; 703. Top rod; 704. Motor; 705. Eccentric block; 706. Chute; 707. First slider; 708. First roller; 709. Slide rail; 710. Second slider; 711. Push rod; 712. L-shaped connecting plate; 8. Limiting plate; 801. Through groove; 802. Slide plate; 803. Arc groove; 804. Insert plate; 9. U-shaped rod; 10. Contact plate; 11. Support frame; 12. Stirring rod; 1201. Spiral groove; 13. Shaft sleeve; 1301. Second limiting pin; 14. Recycling box; 15. Return pipe. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. Embodiment

[0021] Refer to Figures 1-7A seed breeding device includes a water tank 1 and a seed frame 2. The water tank 1 contains a certain amount of water and covers the seed frame 2. A split beam 3 is fixedly installed in the water tank 1. Both sides of the split beam 3 have inclined surfaces for seed diversion. A cross beam 4 is fixedly installed between the split beam 3 and the side wall of the water tank 1. The seed frame 2 is installed on the cross beam 4. A rocking arm 5 is provided at one end of the split beam 3. A toggle plate 6 is installed on the rocking arm 5 for toggling the water in the water tank 1 to one side. The device also includes: a reciprocating lifting component 7. It is fixedly installed in the water tank 1. The output end of the reciprocating lifting component 7 is fixedly connected to the rocking arm 5. It is fixedly installed on the limit plate 8 between the dividing beam 3 and the water tank 1. A through groove 801 is provided on the limit plate 8. The rocking arm 5 is slidably installed in the through groove 801. A slide plate 802 is fixedly installed on the limit plate 8, and an insert plate 804 is fixedly installed on the slide plate 802. When the rocking arm 5 moves to the end of the stroke of the through groove 801, the toggle plate 6 is separated from the rocking arm 5 through the slide plate 802.

[0022] First, install the seed frame 2 on the crossbeam 4. Then place the seeds to be screened into the seed frame 2, ensuring that the seeds are completely immersed in the water. Then activate the reciprocating lift assembly 7, which drives the rocking arm 5 to begin reciprocating motion. As the rocking arm 5 swings, the toggle plate 6 mounted on it moves with it. As the toggle plate 6 moves through the water, it pushes the water to form a current. The direction and intensity of the current depend on the amplitude and frequency of the toggle plate 6's swing. Due to the different density of seeds, full and healthy seeds are usually heavier and will sink to the bottom; while empty shells or low-quality seeds will float on the water surface. The water flow quickly separates the seeds floating on the surface, optimizing the seed separation effect.

[0023] It should be noted that a recovery box 14 is installed on the side of the water tank 1 away from the reciprocating lifting assembly 7 for collecting empty shells of seeds. A return pipe 15 is installed between the recovery box 14 and the water tank 1, and a pump body is installed on the return pipe 15 for pumping the water in the recovery box 14 back to the water tank 1 for recycling.

[0024] Preferably, the through slot 801 is L-shaped, an arcuate slot 803 is provided between the two ends of the through slot 801 , and the curvature of the slide plate 802 is adapted to the arcuate slot 803 .

[0025] When the swing rod 5 moves to a critical point close to the arc-shaped groove 803 in the vertical section of the through groove 801 and with the downward movement, the insertion plate 804 is inserted between the swing rod 5 and the toggle plate 6 to separate them. During the downward movement, the distance between the toggle plate 6 and the swing rod 5 gradually increases under the restraint of the sliding plate 802. Subsequently, when the toggle plate 6 moves to the horizontal section of the through groove 801, it returns to the initial position connected to the swing rod 5. During the movement, the toggle plate 6 stirs the water surface. Due to the action of the water flow, seeds of different densities will change their positions according to the buoyancy characteristics. Plump and healthy seeds sink, while empty shells or seeds of poor quality float on the water surface and move into the recovery box 14 with the water flow.

[0026] It should be noted that the horizontal section of the through groove 801 is basically flush with or lower than the liquid level in the water tank 1. During the upward movement of the toggle plate 6 along with the swing rod 5, the water body will not be disturbed. Only when the toggle plate 6 resets, it will drive the water body to be stirred to one side, ensuring the consistency and stability of the water flow pattern.

[0027] Preferably, symmetrically arranged sliding holes 501 are provided on the swing rod 5. A U-shaped rod 9 is installed between the symmetric sliding holes 501 through an elastic member. Preferably, the elastic member is a spring. The toggle plate 6 is rotatably installed on the U-shaped rod 9.

[0028] During the downward movement of the swing rod 5, due to the existence of the spring, the U-shaped rod 9 can slide in the sliding hole 501. At the same time, the toggle plate 6 is restricted by the sliding plate 802, and the distance between the toggle plate 6 and the swing rod 5 gradually increases until they are completely separated. The toggle plate 6 continues to move along the sliding plate 802 to the horizontal section of the through groove 801. During this process, the toggle plate 6 stirs the water surface and continues to affect the water flow. Due to its rotatable installation design, the toggle plate 6 can automatically adjust the angle according to the water flow change, improving the water flow disturbance efficiency.

[0029] Preferably, the reciprocating lifting assembly 7 includes a mounting plate 701 fixedly installed on the side wall of the water tank 1. A top seat 702 is slidably installed on the mounting plate 701. A top rod 703 is fixedly installed on the top seat 702. The top rod 703 is fixedly connected to the swing rod 5. A motor 704 is fixedly installed on the water tank 1. An eccentric block 705 in contact with the top seat 702 is fixedly installed at the output end of the motor 704. Among them, a chute 706 is provided on the mounting plate 701. A first slider 707 adapted to the chute 706 is fixedly installed on the top seat 702. A first roller 708 is rotatably installed on the first slider 707. The eccentric block 705 is in contact with the first roller 708.

[0030] Start the motor 704 to drive the eccentric block 705 to rotate. Due to the design of the eccentric block 705, it will periodically contact and push the first roller 708, thereby causing the top seat 702 to reciprocate along the chute 706. When the eccentric block 705 rotates, by contacting the first roller 708, it pushes the top seat 702 to move up or down. This reciprocating motion of the top seat 702 is transmitted to the swing rod 5 through the push rod 703, causing it to swing correspondingly within the through groove 801.

[0031] Furthermore, a slide rail 709 is fixedly installed on the mounting plate 701. The slide rail 709 is perpendicular to the extending direction of the chute 706. Symmetrically arranged second sliders 710 are slidably installed on the slide rail 709. A push rod 711 is fixedly installed on the second slider 710. The push rod 711 abuts against the seed box 2. An L-shaped connecting plate 712 is rotatably installed on the mounting plate 701. The L-shaped connecting plate 712 is rotatably connected to the top seat 702 and the second slider 710 respectively.

[0032] When the top seat 702 makes a vertical reciprocating motion, the L-shaped connecting plate 712 converts this motion into a horizontal reciprocating motion of the second slider 710 on the slide rail 709. The horizontal reciprocating motion of the second slider 710 is transmitted to the seed box 2 through the push rod 711, causing the seed box 2 to make a reciprocating vibration in the horizontal direction. The vibration of the seed box 2 further promotes the dispersion and separation of seeds in water. Especially for seeds with similar densities, it can effectively improve the screening efficiency.

[0033] Symmetrically arranged first limit pins 401 are fixedly installed on the cross beam 4. A groove 402 is formed on the cross beam 4 between the symmetric first limit pins 401. A second roller 403 is fixedly installed on the bottom surface of the groove 402. Both sides of the seed box 2 have connecting portions 201. Limit grooves 202 adapted to the first limit pins 401 are formed on the connecting portions 201. Furthermore, a contact plate 10 is installed on the cross beam 4 through an elastic member. The elastic member is preferably a spring. The contact plate 10 abuts against the connecting portion 201.

[0034] The seed box 2 slides along the cross beam 4 under the push of the push rod 711. The limit groove 202 of its connecting portion 201 cooperates with the first limit pin 401 to ensure the accuracy of the movement trajectory. The second roller 403 reduces the friction between the seed box 2 and the cross beam 4, making the sliding smoother. The contact plate 10 provides a buffering effect through the elastic member, preventing the seed box 2 from being damaged due to the impact of the push rod 711, and at the same time ensuring that the seed box 2 always remains in contact with the push rod 711.

[0035] A support frame 11 is fixedly connected between the dividing beam 3 and the inner bottom surface of the water tank 1. A stirring rod 12 is rotatably installed in the seed box 2. One end of the stirring rod 12 penetrates out of the seed box 2 and abuts against the support frame 11. Among them, an elastic member is sleeved on the stirring rod 12. Further, a bushing 13 is fixedly installed on the inner wall of the seed box 2, and the stirring rod 12 is coaxially installed in the bushing 13. A spiral groove 1201 is formed on the stirring rod 12, and a second limit pin 1301 adapted to the spiral groove 1201 is fixedly installed in the bushing 13.

[0036] When the seed box 2 makes a horizontal reciprocating motion under the action of the push rod 711, one end of the stirring rod 12 contacts the support frame 11 and is pushed, so that the stirring rod 12 starts to rotate. The spiral groove 1201 on the stirring rod 12 cooperates with the second limit pin 1301 in the bushing 13, so that the stirring rod 12 can only rotate in a specific direction, ensuring the accuracy of its movement track. The rotational movement of the stirring rod 12 further promotes the mixing and dispersion of seeds in water. Especially for seeds with similar densities, the screening efficiency can be effectively improved.

[0037] A seed cultivation method includes the following steps: Step 1: Preparation work 1. Equipment inspection: Confirm that components such as the water tank 1, the dividing beam 3, the cross beam 4, the swing rod 5, the dial plate 6, the reciprocating lifting assembly 7, the limit plate 8, the sliding plate 802, and the insertion plate 804 are installed correctly and without damage.

[0038] Check whether the motor 704 and its eccentric block 705 are working properly, and ensure that components such as the top seat 702, the first slider 707, the first roller 708, the slide rail 709, the second slider 710, the push rod 711, and the L-shaped connecting plate 712 are in good condition.

[0039] Ensure that the recycling box 14, the return pipe 15, and the pump body can operate normally to ensure the smoothness of the water circulation system.

[0040] 2. Filling the water tank 1: Fill a certain amount of water in the water tank 1 to ensure that the water surface height can completely cover the seed box 2.

[0041] Clean the impurities in the water tank 1 to ensure the water quality is clean and avoid affecting the seed screening effect.

[0042] Step 2: Seed preparation and placement 1. Seed selection: According to the breeding goal, such as increasing yield, improving quality, or enhancing resistance, carefully select plants with excellent characteristics as parents and collect their seeds.

[0043] 2. Seed cleaning: The collected seeds are preliminarily cleaned to remove impurities, empty shells and obviously damaged seeds, reducing the pressure of subsequent screening.

[0044] 3. Put the seeds into seed box 2: Place the seeds to be screened into the seed frame 2, ensuring that the seeds are evenly distributed.

[0045] The seed frame 2 is mounted on the crossbeam 4 via its connecting portion 201 , ensuring that its limiting groove 202 is correctly aligned with the first limiting pin 401 and in close contact with the abutment plate 10 .

[0046] Step 3: Start the device and start screening 1. Start motor 704: The motor 704 is started to rotate the eccentric block 705. Due to the design of the eccentric block 705, it periodically contacts and pushes the first roller 708, thereby causing the top seat 702 to reciprocate along the slide 706.

[0047] 2. Actions of the rocking lever 5 and the toggle plate 6: When the eccentric block 705 rotates, it pushes the top seat 702 to move upward or downward by contacting the first roller 708. The reciprocating motion of the top seat 702 is transmitted to the rocking arm 5 through the top rod 703, causing it to swing accordingly in the through slot 801.

[0048] The toggle plate 6 installed on the rocking arm 5 moves accordingly, forming a water flow with a specific direction and intensity in the water, thereby promoting seed separation.

[0049] 3. Seed frame 2 vibrates: The L-shaped connecting plate 712 converts the vertical movement of the top seat 702 into the horizontal reciprocating movement of the second slider 710 on the slide rail 709. The horizontal reciprocating movement of the second slider 710 is transmitted to the seed frame 2 through the push rod 711, causing the seed frame 2 to vibrate reciprocatingly in the horizontal direction.

[0050] The vibration of the seed frame 2 further promotes the dispersion and separation of seeds in water, especially for seeds with similar density, which can effectively improve the screening efficiency.

[0051] 4. The stirring rod 12 rotates: When the seed frame 2 performs horizontal reciprocating motion under the action of the push rod 711, one end of the stirring rod 12 contacts the support frame 11 and is pushed, thereby starting to rotate.

[0052] The spiral groove 1201 on the stirring rod 12 cooperates with the second limiting pin 1301 in the shaft sleeve 13 so that the stirring rod 12 can only rotate along a specific direction, thereby ensuring the accuracy of its motion trajectory.

[0053] The rotational motion of the stirring rod 12 further promotes the mixing and dispersion of seeds in water. Especially for seeds with similar densities, it can effectively improve the screening efficiency.

[0054] Step Four: Seed Separation and Collection 1. Seed Separation: Due to the action of the water flow, seeds of different densities will change their positions according to their buoyancy characteristics. Plump and healthy seeds sink to the bottom, while empty shells or seeds of poor quality float on the water surface and move into the recycling box 14 with the water flow.

[0055] A reflux pipe 15 is installed between the recycling box 14 and the water tank 1, and a pump body is installed on the reflux pipe 15 to pump the water in the recycling box 14 back into the water tank 1 for recycling, ensuring the effective utilization of water resources.

[0056] 2. High-quality Seed Collection: After a period of screening, turn off the motor 704 to stop the operation of the equipment.

[0057] Open the water tank 1, take out the high-quality seeds that have sunk to the bottom, and perform subsequent treatments such as cleaning and drying.

[0058] Step Five: Subsequent Treatments and Records 1. Seed Treatments: Thoroughly clean the selected high-quality seeds to remove residual moisture and other impurities, and then use drying equipment for drying treatment.

[0059] Conduct standard quality detection methods such as germination tests to evaluate the health status and vitality level of the screened seeds, and ensure that they meet the breeding requirements.

[0060] 2. Data Recording: Record the data of each screening, such as seed type, screening time, screening results, etc., to provide a basis for subsequent improvement and optimization.

[0061] Analyze various parameters in the screening process, such as water flow rate, vibration frequency, etc., to find the optimal screening conditions and improve the screening efficiency and accuracy.

[0062] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A seed breeding device, comprising a water tank (1) and a seed frame (2), characterized in that, A split beam (3) is fixedly installed in the water tank (1), a cross beam (4) is fixedly installed between the split beam (3) and the side wall of the water tank (1), the seed frame (2) is installed on the cross beam (4), a rocking rod (5) is provided at one end of the split beam (3), and a toggle plate (6) is installed on the rocking rod (5) for toggling the water in the water tank (1) to one side, and further comprising: A reciprocating lifting component (7) is fixedly installed in the water tank (1), and an output end of the reciprocating lifting component (7) is fixedly connected to the rocking arm (5). A limit plate (8) is fixedly mounted between the split beam (3) and the water tank (1), wherein a through slot (801) is provided on the limit plate (8), and the rocking arm (5) is slidably mounted in the through slot (801). A slide plate (802) is fixedly mounted on the limit plate (8), and an insert plate (804) is fixedly mounted on the slide plate (802). When the rocking arm (5) moves to the end of the travel of the through slot (801), the toggle plate (6) is separated from the rocking arm (5) through the slide plate (802).

2. The seed breeding device according to claim 1, characterized in that, The through groove (801) is L-shaped, and an arc groove (803) is provided between the two ends of the through groove (801), and the curvature of the slide plate (802) is adapted to the arc groove (803).

3. The seed breeding device according to claim 2, characterized in that, The rocking lever (5) is provided with symmetrically arranged sliding holes (501), a U-shaped rod (9) is installed between the symmetrical sliding holes (501) via an elastic member, and the toggle plate (6) is rotatably installed on the U-shaped rod (9).

4. The seed breeding device according to claim 1, characterized in that, The reciprocating lifting assembly (7) comprises a mounting plate (701) fixedly mounted on the side wall of the water tank (1), a top seat (702) being slidably mounted on the mounting plate (701), a top rod (703) being fixedly mounted on the top seat (702), the top rod (703) being fixedly connected to the rocking arm (5), a motor (704) being fixedly mounted on the water tank (1), an eccentric block (705) being fixedly mounted on the output end of the motor (704) and being in contact with the top seat (702), A slide groove (706) is provided on the mounting plate (701), a first slider (707) adapted to the slide groove (706) is fixedly mounted on the top seat (702), a first roller (708) is rotatably mounted on the first slider (707), and the eccentric block (705) abuts against the first roller (708).

5. The seed breeding device according to claim 4, characterized in that, A slide rail (709) is fixedly mounted on the mounting plate (701), and the extension directions of the slide rail (709) and the slide groove (706) are perpendicular to each other. A symmetrically arranged second slider (710) is slidably mounted on the slide rail (709), and a push rod (711) is fixedly mounted on the second slider (710), and the push rod (711) abuts against the seed frame (2). An L-shaped connecting plate (712) is rotatably mounted on the mounting plate (701), and the L-shaped connecting plate (712) is rotatably connected to the top seat (702) and the second slider (710), respectively.

6. The seed breeding device according to claim 5, characterized in that The cross beam (4) is fixedly installed with symmetrically arranged first limit pins (401). A groove (402) is formed in the cross beam (4) between the symmetric first limit pins (401). A second roller (403) is fixedly installed on the bottom surface of the groove (402). Both sides of the seed box (2) have connecting parts (201), and limit grooves (202) adapted to the first limit pins (401) are formed in the connecting parts (201).

7. The seed breeding device according to claim 6, characterized in that, The cross beam (4) is installed with an abutting plate (10) through an elastic member, and the abutting plate (10) abuts against the connecting part (201).

8. A seed breeding device according to claim 1, characterized in that, A support frame (11) is fixedly connected between the dividing beam (3) and the inner bottom surface of the water tank (1). A stirring rod (12) is rotatably installed in the seed box (2). One end of the stirring rod (12) penetrates out of the seed box (2) and abuts against the support frame (11). Wherein, an elastic member is sleeved on the stirring rod (12).

9. The seed breeding device according to claim 8, characterized in that, A bushing (13) is fixedly installed on the inner wall of the seed box (2). The stirring rod (12) is coaxially installed in the bushing (13). A spiral groove (1201) is formed in the stirring rod (12), and a second limit pin (1301) adapted to the spiral groove (1201) is fixedly installed in the bushing (13).

10. A seed breeding method, according to any one of claims 1-9, a seed breeding apparatus, characterized in that, Including the following steps: Step 1: Pour the seeds to be screened into the device; Step 2: Under the action of water flow, the seeds are stratified according to their density and size; Step 3: Collect the empty shells and bad seeds on the upper layer; Step 4: Collect the seeds at the bottom.

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