Seed screening device

Abstract

The invention provides a seed screening device and belongs to the technical field of seed screening, the seed screening device comprises a support plate, a water barrel, a first driving assembly, a second driving assembly, a net-shaped containing assembly, a fishing assembly and a material overturning assembly, the water barrel is fixedly installed at the bottom of the inner side of the support plate, and the net-shaped containing assembly is arranged above the water barrel; the first driving assembly is installed on the top of the inner side of the support plate and used for driving the net-shaped containing assembly to move up and down, the second driving assembly is arranged on the inner side of the support plate and used for driving the net-shaped containing assembly to rotate, and the material overturning assembly is arranged at the bottom of the inner side of the water barrel. Compared with the prior art, the seed selecting device has the advantages that when seeds are selected, the seeds can be automatically turned over, so that bad seeds and shriveled seeds mingled in improved seeds quickly float upwards along the interior of a water body, and the seed selecting effect and seed selecting efficiency are improved.

Description

Technical Field

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

[0002] At present, seeds need to be selected before planting to remove bad seeds and shriveled seeds, so as to improve the survival rate after seed planting and increase crop yields.

[0003] In the prior art, for the seed selection operation, most of the time, the seeds are placed inside a sieve mesh, and then the sieve mesh together with the seeds is put into water. Subsequently, the sieve mesh is shaken, so that the bad seeds and shriveled seeds with lighter quality float to the water surface. This seed selection method is relatively traditional. On the one hand, after the bad seeds and shriveled seeds float to the water surface, manual fishing is required, thus consuming too much labor. On the other hand, some bad seeds and shriveled seeds sandwiched inside good seeds are difficult to be shaken out smoothly, resulting in an unsatisfactory seed selection effect. Summary of the Invention

[0004] Aiming at the deficiencies of the above prior art, the technical problem to be solved by the embodiments of the present invention is to provide a seed screening device.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A seed screening device includes a support plate, a water cylinder, a first driving component, a second driving component, a net-shaped holding component, a fishing component, and a material turning component.

[0007] The water cylinder is fixedly installed at the inner bottom of the support plate, and the net-shaped holding component is arranged above the water cylinder.

[0008] The first driving component is installed at the inner top of the support plate and is used to drive the net-shaped holding component to move up and down.

[0009] The second driving component is arranged inside the support plate and is used to drive the net-shaped holding component to rotate.

[0010] The material turning component is arranged at the inner bottom of the water cylinder. After the net-shaped holding component moves down and enters the water cylinder, the material turning component is used to turn the seeds on the upper part of the net-shaped holding component.

[0011] The fishing component is arranged above the net-shaped holding component and is used to fish out the bad seeds and shriveled seeds floating on the water surface inside the water cylinder.

[0012] As a further improvement of the present invention: The second driving component includes a motor and a rotating shaft. The rotating shaft is installed at the output end of the motor and is controlled by the motor to rotate.

[0013] The mesh storage component includes an outer ring plate, a storage mesh, and a central plate. The central plate is fixedly arranged outside the rotating shaft. The outer ring plate is arranged outside the central plate. The storage mesh is fixedly arranged between the central plate and the outer ring plate.

[0014] As a further improvement of the present invention: The first driving component includes a support plate and a hydraulic cylinder.

[0015] The hydraulic cylinder is fixedly installed on the inner top wall of the support plate. The support plate is fixedly arranged at the output end of the hydraulic cylinder. The motor is fixedly arranged on the upper part of the support plate. The rotating shaft vertically penetrates the support plate and is rotationally matched with the support plate.

[0016] As a further improvement of the present invention: A runner is fixedly arranged on the shaft body of the rotating shaft below the central plate. A plurality of arc-shaped protrusions are fixedly arranged on the circumferential side wall of the runner. The plurality of arc-shaped protrusions are annularly and spacedly distributed.

[0017] The material turning component includes an L-shaped piston rod, an annular block, a spray pipe, a piston pipe, and an elastic member.

[0018] The piston pipe is fixedly installed on the inner bottom wall of the water cylinder. The piston pipe is distributed along the radial direction of the water cylinder. One end of the L-shaped piston rod extends into the piston pipe and is telescopically matched with the piston pipe.

[0019] The annular block is fixedly arranged outside the L-shaped piston rod. One end of the elastic member is connected to the annular block, and the other end is connected to the piston pipe, for providing elastic support to the L-shaped piston rod. A plurality of groups of spray pipes are provided. The plurality of spray pipes are fixedly arranged on the upper part of the piston pipe and are spacedly distributed along the length direction of the piston pipe.

[0020] As a further improvement of the present invention: A guiding inclined rod is fixedly arranged at one end of the L-shaped piston rod away from the piston pipe.

[0021] As a further improvement of the present invention: The fishing component includes a support rod and a fishing belt.

[0022] The support rod is fixedly arranged on the outer wall of the rotating shaft. The support rod is perpendicular to the rotating shaft. The fishing belt is installed on one side of the support rod. A plurality of uniformly distributed through holes are formed in the fishing belt.

[0023] As a further improvement of the present invention: the inside of the rotating shaft is hollow, a horizontally penetrating notch is provided on the side wall of the rotating shaft, there are four groups of support rods, and the four groups of support rods are distributed in pairs and fixedly arranged on the outer wall of the rotating shaft. The four groups of support rods enclose a rectangular frame structure. A set of rollers are respectively rotatably arranged at both ends inside the four groups of support rods.

[0024] The salvage belt is in an annular structure, and the salvage belt passes through the notch and is sleeved between the two groups of rollers.

[0025] The seed screening device further includes a third driving component. When the rotating shaft drives the salvage belt to rotate to salvage the bad seeds and shriveled seeds floating on the water surface, the third driving component is used to drive the salvage belt to operate relative to the two groups of rollers.

[0026] As a further improvement of the present invention: the third driving component includes a gear and an annular rack.

[0027] The gear is fixedly arranged at the end of one of the groups of rollers, and the annular rack is fixedly arranged on the inner wall of the water cylinder and can be meshed with the gear.

[0028] As a further improvement of the present invention: a scraper is also fixedly arranged on the inner wall of the rotating shaft, and the end of the scraper away from the inner wall of the rotating shaft is attached to the side wall of the salvage belt.

[0029] As a further improvement of the present invention: a partition net is detachably arranged at the bottom of the rotating shaft.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] In the embodiment of the present invention, when seed selection is required, the seeds to be screened can be placed on the upper part of the mesh storage component. Subsequently, the first driving component drives the mesh storage component to move downward, so that the mesh storage component moves into the water cylinder. At this time, the seeds located on the upper part of the mesh storage component are immersed in the water body, and the bad seeds and shriveled seeds with lighter quality can float on the water surface under the action of buoyancy, thereby achieving the purpose of seed selection. During the seed selection process, the fishing component is used to fish out the bad seeds and shriveled seeds floating on the water surface. After the seed selection is completed, the first driving component drives the mesh storage component to move upward, and then the good seeds remaining on its upper part can be taken out of the water cylinder; after the mesh storage component moves into the water cylinder, the second driving component drives the mesh storage component to rotate, and at the same time, the turning component turns the seeds on the upper part of the mesh storage component. By using the rotation of the mesh storage component and the turning of the seeds by the turning component, the bad seeds and shriveled seeds mixed in the good seeds can smoothly and quickly float upward along the water body, thereby improving the seed selection effect and efficiency. Compared with the prior art, when selecting seeds, the seeds can be automatically turned, so that the bad seeds and shriveled seeds mixed in the good seeds quickly float upward along the water body, thereby improving the seed selection effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of a seed screening device Figure 1 ;

[0033] Figure 2 is a schematic structural diagram of a seed screening device Figure 2 ;

[0034] Figure 3 is a schematic structural diagram of the mesh storage component in a seed screening device;

[0035] Figure 4 is Figure 2 the enlarged schematic diagram of area A in

[0036] Figure 5 is Figure 2 the enlarged schematic diagram of area B in

[0037] Figure 6 is Figure 2 the enlarged schematic diagram of area C in

[0038] Figure 7 is Figure 3 the enlarged schematic diagram of area D in

[0039] In the figure: 10 - support plate, 20 - water cylinder, 30 - first driving assembly, 301 - support plate, 302 - hydraulic cylinder, 40 - second driving assembly, 401 - motor, 402 - rotating shaft, 403 - notch, 404 - scraper, 405 - runner, 406 - arc-shaped protrusion, 407 - partition net, 50 - mesh storage assembly, 501 - outer ring plate, 502 - storage net, 503 - central plate, 60 - fishing assembly, 601 - support rod, 602 - fishing belt, 603 - through hole, 604 - roller, 70 - material turning assembly, 701 - guiding inclined rod, 702 - L-shaped piston rod, 703 - annular block, 704 - nozzle, 705 - piston tube, 706 - elastic member, 80 - third driving assembly, 801 - gear, 802 - annular rack. Detailed implementation manners

[0040] The technical solutions of the present invention will be further described in detail below in combination with the specific implementation manners.

[0041] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Please refer to Figure 1 、 Figure 2 and Figure 3, this embodiment provides a seed screening device, including a support plate 10, a water cylinder 20, a first driving component 30, a second driving component 40, a net-shaped holding component 50, a fishing component 60 and a material turning component 70. The water cylinder 20 is fixedly installed at the inner bottom of the support plate 10. The net-shaped holding component 50 is arranged above the water cylinder 20. The first driving component 30 is installed at the inner top of the support plate 10 and is used to drive the net-shaped holding component 50 to move up and down. The second driving component 40 is arranged at the inner side of the support plate 10 and is used to drive the net-shaped holding component 50 to rotate. The material turning component 70 is arranged at the inner bottom of the water cylinder 20. After the net-shaped holding component 50 moves down and enters the water cylinder 20, the material turning component 70 is used to turn the seeds on the upper part of the net-shaped holding component 50. The fishing component 60 is arranged above the net-shaped holding component 50 and is used to fish out the bad seeds and shriveled seeds floating on the water surface inside the water cylinder 20.

[0045] When seed selection is needed, the seeds to be screened can be placed on the upper part of the net-shaped holding component 50. Subsequently, the first driving component 30 drives the net-shaped holding component 50 to move downward, so that the net-shaped holding component 50 moves into the water cylinder 20. At this time, the seeds on the upper part of the net-shaped holding component 50 are immersed in the water body. The bad seeds and shriveled seeds with lighter quality can float on the water surface under the action of buoyancy, thus achieving the purpose of seed selection. During the seed selection process, the fishing component 60 is used to fish out the bad seeds and shriveled seeds floating on the water surface. After the seed selection is completed, the first driving component 30 drives the net-shaped holding component 50 to move upward, and then the good seeds remaining on its upper part can be taken out of the water cylinder 20; after the net-shaped holding component 50 moves into the water cylinder 20, the second driving component 40 drives the net-shaped holding component 50 to rotate, and at the same time, the material turning component 70 turns the seeds on the upper part of the net-shaped holding component 50. By using the rotation of the net-shaped holding component 50 and the turning of the seeds by the material turning component 70, the bad seeds and shriveled seeds mixed in the good seeds can float upward along the water body smoothly and quickly, thereby improving the seed selection effect and efficiency.

[0046] Please refer to Figure 1 and Figure 2 , in one embodiment, the second driving component 40 includes a motor 401 and a rotating shaft 402. The rotating shaft 402 is installed at the output end of the motor 401 and is controlled by the motor 401 to rotate. The net-shaped holding component 50 includes an outer ring plate 501, a holding net 502 and a central plate 503. The central plate 503 is fixedly arranged outside the rotating shaft 402. The outer ring plate 501 is arranged outside the central plate 503. The holding net 502 is fixedly arranged between the central plate 503 and the outer ring plate 501.

[0047] Initially, the outer ring plate 501, the holding net 502 and the center plate 503 are located above the water cylinder 20 as a whole. When seed selection is required, the seeds to be selected are placed on the upper part of the holding net 502, and then the first driving assembly 30 is used to drive the motor 401, the rotating shaft 402, the outer ring plate 501, the holding net 502 and the center plate 503 to move downward as a whole. When the outer ring plate 501, the holding net 502 and the center plate 503 move downward, they enter the water cylinder 20, and then drive the seeds into the water body. At this time, the light-weight bad seeds and the shriveled seeds on the surface of the seeds are removed. The seeds float up along the inside of the water body and then act on the surface of the water body. After the outer ring plate 501, the containing net 502 and the center plate 503 move to the inside of the water cylinder 20, the motor 401 drives the rotating shaft 402 to rotate, thereby driving the center plate 503, the containing net 502 and the outer ring plate 501 to rotate as a whole. When the containing net 502 rotates, it can drive the seeds on the upper part thereof to move inside the water body, and utilize the resistance of the water body to the seeds to drive the seeds to move, so that some bad seeds and deflated seeds mixed in the seeds can be exposed and discharged, and then further float up along the inside of the water body.

[0048] See also Figure 1 as well as Figure 2 In one embodiment, the first driving assembly 30 includes a support plate 301 and a hydraulic cylinder 302, the hydraulic cylinder 302 is fixedly mounted on the inner top wall of the bracket plate 10, the support plate 301 is fixedly arranged at the output end of the hydraulic cylinder 302, the motor 401 is fixedly arranged on the upper part of the support plate 301, and the rotating shaft 402 vertically penetrates the support plate 301 and rotates with the support plate 301.

[0049] After the seeds to be screened are placed on the upper part of the holding net 502, the hydraulic cylinder 302 can be extended to drive the support plate 301 to move downward. When the support plate 301 moves downward, it drives the motor 401 shaft 402, the outer ring plate 501, the holding net 502 and the center plate 503 to move downward as a whole, so that the holding net 502 enters the interior of the water cylinder 20, and the seeds on the upper part of the holding net 502 are immersed in the water.

[0050] See also Figure 3 as well as Figure 6, in one embodiment, a runner 405 is fixedly arranged on a shaft body of the rotating shaft 401 below the central plate 503. A plurality of arc-shaped protrusions 406 are fixedly arranged on the circumferential side wall of the runner 405. The plurality of arc-shaped protrusions 406 are annularly and spacedly distributed. The material turning assembly 70 includes an L-shaped piston rod 702, an annular stopper 703, a nozzle 704, a piston tube 705 and an elastic member 706. The piston tube 705 is fixedly installed on the inner bottom wall of the water cylinder 20. The piston tube 705 is distributed along the radial direction of the water cylinder 20. One end of the L-shaped piston rod 702 extends into the piston tube 705 and is telescopically matched with the piston tube 705. The annular stopper 703 is fixedly arranged outside the L-shaped piston rod 702. One end of the elastic member 706 is connected to the annular stopper 703, and the other end is connected to the piston tube 705 for providing elastic support to the L-shaped piston rod 702. A plurality of groups of nozzles 704 are provided. The plurality of nozzles 704 are fixedly arranged on the upper part of the piston tube 705 and are spacedly distributed along the length direction of the piston tube 705.

[0051] When the hydraulic cylinder 302 extends to drive the support plate 301, the motor 401, the rotating shaft 402, the central plate 503, the containing net 502 and the outer ring plate 501 to move downward as a whole, the rotating shaft 402 can drive the runner 405 and a plurality of arc-shaped protrusions 406 to move downward synchronously. When the central plate 503, the containing net 502 and the outer ring plate 501 move downward to the inner bottom of the water cylinder 20 as a whole, the L-shaped piston rod 702 extends between two adjacent arc-shaped protrusions 406. As the motor 401 drives the rotating shaft 402 to rotate and then drives the central plate 503, the containing net 502 and the outer ring plate 501 to rotate, the rotating shaft 402 can drive the runner 405 and a plurality of arc-shaped protrusions 406 to rotate. When the plurality of arc-shaped protrusions 406 rotate, they can act on the L-shaped piston rod 702 in sequence. When a group of arc-shaped protrusions 406 acts on the L-shaped piston rod 702, it can push the L-shaped piston rod 702 to move into the piston tube 705, and then press out the water body inside the piston tube 705 through a plurality of nozzles 704. After the water body is pressed out through the plurality of nozzles 704, it is ejected upward and passes through the containing net 502 from bottom to top, and then impacts the seeds on the upper part of the containing net 502, realizing the turning treatment of the seeds, so that the bad seeds and shriveled seeds mixed in the good seeds are exposed, and then smoothly float upward along the inside of the water body; when the arc-shaped protrusion 406 pushes the L-shaped piston rod 702 to make the L-shaped piston rod 702 move into the piston tube 705 as described above, the elastic member 705 is compressed by force. When the L-shaped piston rod 702 slides to the middle position between the current arc-shaped protrusions 406, the L-shaped piston rod 702 moves to the maximum limit. After that, as the arc-shaped protrusion 406 continues to rotate, the elastic member 705 can push the L-shaped piston rod 702 to make the L-shaped piston rod 702 move out of the piston tube 705 to extract the water body inside the water cylinder 20 into the piston tube 705 through a plurality of nozzles 704, realizing the replenishment of the water body.

[0052] When the rotating shaft 402 drives the rotating wheel 405 and the arc-shaped protrusion 406 to move downward, since the relative positions between the plurality of arc-shaped protrusions 406 and the L-shaped piston rod 702 cannot be guaranteed, the L-shaped piston rod 702 is likely to fall directly below a certain arc-shaped protrusion 406. At this time, the downward movement of the plurality of arc-shaped protrusions 406 will directly press against the upper part of the L-shaped piston rod 702, resulting in the L-shaped piston rod 702 not being able to accurately fall between two adjacent groups of arc-shaped protrusions 406, and further causing the arc-shaped protrusion 406 and the L-shaped piston rod 702 to not be successfully positioned. Based on this, please refer to Figure 6 In one embodiment, a guiding inclined rod 701 is fixedly arranged at one end of the L-shaped piston rod 702 away from the piston tube 705.

[0053] When a certain arc-shaped protrusion 406 is exactly above the L-shaped piston rod 702 during the downward movement, the downward-moving arc-shaped protrusion 406 will act on the guiding inclined rod 701 in advance and then push the guiding inclined rod 701, thereby driving the L-shaped piston rod 702 to move inside the piston tube 705. Until the arc-shaped protrusion 406 moves down to one side of the L-shaped piston rod 702, as the motor 401 drives the rotating shaft 402 to rotate, and then drives the rotating wheel 405 and the arc-shaped protrusion 406 to rotate, the successful positioning of the arc-shaped protrusion 406 and the L-shaped piston rod 702 is realized.

[0054] In one embodiment, the elastic member 706 can be a spring or a metal elastic sheet, and there is no limitation here.

[0055] Please refer to Figure 3 and Figure 4 In one embodiment, the fishing assembly 60 includes a support rod 601 and a fishing belt 602. The support rod 601 is fixedly arranged on the outer wall of the rotating shaft 402. The support rod 601 is perpendicular to the rotating shaft 402. The fishing belt 602 is installed on one side of the support rod 601. A plurality of uniformly distributed through holes 603 are formed in the fishing belt 602.

[0056] After the hydraulic cylinder 302 extends and drives the holding net 502 to enter the inner bottom of the water cylinder 20, the fishing belt 602 moves to the upper part of the water body inside the water cylinder 20, and a part of the fishing belt 602 is immersed in the water body. When the motor 401 drives the rotating shaft 402 to rotate, which drives the holding net 502 to rotate and drives the L-shaped piston rod 702 to move, the rotating shaft 402 can also drive the fishing belt 602 to rotate through the support rod 601. When the fishing belt 602 rotates, it can fish and process the bad seeds and shriveled seeds floating on the water surface.

[0057] Please refer to Figure 4 and Figure 5, in one embodiment, the inside of the rotating shaft 402 is hollow, and a horizontally penetrating notch 403 is formed in the side wall of the rotating shaft 402. There are four groups of the support rods 601, and the four groups of the support rods 601 are distributed oppositely in pairs and are respectively fixedly arranged on the outer wall of the rotating shaft 402. The four groups of the support rods 601 enclose a rectangular frame structure. At both ends of the inner sides of the four groups of the support rods 601, a set of rollers 604 are respectively rotatably arranged. The salvage belt 602 is in an annular structure. The salvage belt 602 passes through the notch 403 and is sleeved between the two sets of the rollers 604. The seed screening device further includes a third driving assembly 80. When the rotating shaft 402 drives the salvage belt 602 to rotate to salvage the bad seeds and shriveled seeds floating on the water surface, the third driving assembly 80 is used to drive the salvage belt 602 to operate relative to the two sets of the rollers 604. The bad seeds and shriveled seeds attached to the side wall of the salvage belt 602 can enter the inside of the rotating shaft 402 through the notch 403 as the salvage belt 602 operates, so as to realize the collection of the bad seeds and shriveled seeds.

[0058] Please refer to Figure 4 , in one embodiment, the third driving assembly 80 includes a gear 801 and an annular rack 802. The gear 801 is fixedly arranged at the end of one of the rollers 604, and the annular rack 802 is fixedly arranged on the inner wall of the water cylinder 20 and can mesh with the gear 801.

[0059] After the hydraulic cylinder 302 extends to move the salvage belt 602 to the inside of the water cylinder 20 and submerges a part of the salvage belt 602 in the water, the gear 801 moves to the inside of the annular rack 802 and then remains in a meshing state with the annular rack 802. As the rotating shaft 402 rotates, the rotating shaft 402 can drive the rollers 604 and the salvage belt 602 to rotate through the four groups of the support rods 601. At the same time, the support rods 601 can drive the gear 801 to move in a circular motion inside the water cylinder 20. When the salvage belt 602 rotates, the water passes through the through holes 603 on the salvage belt 602, while the bad seeds and shriveled seeds floating on the water surface are intercepted on the side wall of the salvage belt 602, so as to realize the salvage of the bad seeds and shriveled seeds. When the gear 801 moves in a circular motion, it drives the corresponding roller 604 to rotate through the meshing action with the annular rack 802. When the roller 604 rotates, it can drive the annular salvage belt 602 to operate. During the operation of the salvage belt 602, the bad seeds and shriveled seeds attached to its side wall are brought into the inside of the rotating shaft 402 through the notch 403, so as to realize the collection and storage of the bad seeds and shriveled seeds.

[0060] Please refer to Figure 5 , in one embodiment, a scraper 404 is further fixedly arranged on the inner wall of the rotating shaft 402, and one end of the scraper 404 away from the inner wall of the rotating shaft 402 is attached to the side wall of the salvage belt 602.

[0061] After the salvage belt 602 rotates to bring the defective seeds and shriveled seeds into the inside of the rotating shaft 402 through the notch 403, the scraper 404 can scrape the defective seeds and shriveled seeds attached to the side wall of the salvage belt 602, so that the defective seeds and shriveled seeds can be smoothly collected inside the rotating shaft 402.

[0062] Please refer to Figure 7 , in one embodiment, a partition net 407 is detachably arranged at the bottom of the rotating shaft 402.

[0063] After the seed selection is completed, the hydraulic cylinder 302 retracts to drive the support plate 301, the motor 401, the rotating shaft 402, the containing net 502 and the salvage belt 602 to move upward. The containing net 502 drives the good seeds on its upper part to move out of the water cylinder 20, and the staff collects the good seeds. At the same time, the staff detaches the partition net 407 from the bottom of the rotating shaft 402, and then discharges the defective seeds and shriveled seeds collected inside the rotating shaft 402 from the bottom of the rotating shaft 402.

[0064] The working principle of the present invention is as follows:

[0065] First, place the seeds to be screened on the upper part of the containing net 502. Then, extend the hydraulic cylinder 302 to drive the support plate 301, the motor 401, the rotating shaft 402, the rotating wheel 405, several arc-shaped protrusions 406, the central plate 503, the containing net 502, the outer ring plate 501, and the salvage belt 602 to move downward as a whole. After the containing net 502 moves to the inner bottom of the water cylinder 20, the L-shaped piston rod 702 falls between two adjacent arc-shaped protrusions 406. A part of the salvage belt 602 is immersed in the water body. Subsequently, start the motor 401. The motor 401 drives the rotating shaft 402 to rotate, and then drives the central plate 503, the containing net 502, the rotating wheel 405, several arc-shaped protrusions 406, and the salvage belt 602 to rotate. The several arc-shaped protrusions 406 act on the L-shaped piston rod 702 in sequence and cooperate with the elastic member 706 to drive the L-shaped piston rod 702 to reciprocate relative to the piston tube 705, and then continuously spray water through the nozzle 704 to the bottom of the containing net 502. The water flows upward through the containing net 502 to impact and turn over the seeds on the upper part of the containing net 502, so that the bad seeds and shriveled seeds mixed in the good seeds are quickly exposed and float rapidly along the inner part of the water body, realizing rapid seed selection; when the bad seeds and shriveled seeds float to the water surface, they can be fished by the rotating salvage belt 602. At the same time, the meshing of the gear 801 and the annular rack 802 enables the salvage belt 602 to operate while rotating, and then the fished bad seeds and shriveled seeds are brought into the rotating shaft 402 through the notch 403, realizing the collection and storage of the bad seeds and shriveled seeds; after the seed selection is completed, the hydraulic cylinder 302 retracts to drive the support plate 301, the motor 401, the rotating shaft 402, the rotating wheel 405, several arc-shaped protrusions 406, the central plate 503, the containing net 502, the outer ring plate 501, and the salvage belt 602 to move upward as a whole. The containing net 502 takes the two kinds of seeds out above the water cylinder 20. At the same time, the bad seeds and shriveled seeds are blocked inside the rotating shaft 402 by the partition net 407. At this time, the staff collects the good seeds on the upper part of the containing net 502, and at the same time opens the partition net 407 to release the bad seeds and shriveled seeds from the bottom of the rotating shaft 402.

[0066] In an embodiment of the present invention, when seed selection is required, the seeds to be screened can be placed on the upper part of the mesh storage assembly 50. Subsequently, the first driving assembly 30 drives the mesh storage assembly 50 to move downward, so that the mesh storage assembly 50 moves into the water cylinder 20. At this time, the seeds located on the upper part of the mesh storage assembly 50 are immersed in the water body. The bad seeds and shriveled seeds with lighter mass can float on the water surface under the action of buoyancy, thereby achieving the purpose of seed selection. During the seed selection process, the fishing assembly 60 is used to fish the bad seeds and shriveled seeds floating on the water surface. After the seed selection is completed, the first driving assembly 30 drives the mesh storage assembly 50 to move upward, and then the good seeds remaining on its upper part can be taken out of the water cylinder 20. After the mesh storage assembly 50 moves into the water cylinder 20, the second driving assembly 40 drives the mesh storage assembly 50 to rotate, and at the same time, the material turning assembly 70 turns the seeds on the upper part of the mesh storage assembly 50. By using the rotation of the mesh storage assembly 50 and the turning of the seeds by the material turning assembly 70, the bad seeds and shriveled seeds mixed in the good seeds can smoothly and quickly float upward along the water body, thereby improving the seed selection effect and efficiency. Compared with the prior art, when selecting seeds, the seeds can be automatically turned, so that the bad seeds and shriveled seeds mixed in the good seeds quickly float upward along the water body, thereby improving the seed selection effect and efficiency.

[0067] The above describes the preferred embodiments of the present invention in detail, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A seed screening device, characterized in that, It includes a support plate (10), a water cylinder (20), a first driving component (30), a second driving component (40), a net-shaped containing component (50), a fishing component (60), and a material-turning component (70). The water cylinder (20) is fixedly installed at the inner bottom of the support plate (10), and the net-shaped containing component (50) is arranged above the water cylinder (20). The first driving component (30) is installed at the inner top of the support plate (10) and is used to drive the net-shaped containing component (50) to move up and down. The second driving component (40) is arranged inside the support plate (10) and is used to drive the net-shaped containing component (50) to rotate. The material-turning component (70) is arranged at the inner bottom of the water cylinder (20). After the net-shaped containing component (50) moves down and enters the interior of the water cylinder (20), the material-turning component (70) is used to turn the seeds on the upper part of the net-shaped containing component (50). The fishing component (60) is arranged above the net-shaped containing component (50) and is used to fish out the bad seeds and shriveled seeds floating on the water surface inside the water cylinder (20).

2. The seed screening device according to claim 1, characterized in that, The second driving component (40) includes a motor (401) and a rotating shaft (402). The rotating shaft (402) is installed at the output end of the motor (401) and is controlled by the motor (401) to rotate. The net-shaped containing component (50) includes an outer ring plate (501), a containing net (502), and a central plate (503). The central plate (503) is fixedly arranged outside the rotating shaft (402), the outer ring plate (501) is arranged outside the central plate (503), and the containing net (502) is fixedly arranged between the central plate (503) and the outer ring plate (501).

3. The seed screening device according to claim 2, characterized in that, The first driving component (30) includes a support plate (301) and a hydraulic cylinder (302). The hydraulic cylinder (302) is fixedly installed on the inner top wall of the support plate (10). The support plate (301) is fixedly arranged at the output end of the hydraulic cylinder (302). The motor (401) is fixedly arranged on the upper part of the support plate (301). The rotating shaft (402) vertically penetrates the support plate (301) and is rotationally matched with the support plate (301).

4. A seed screening device according to claim 2, characterized in that, A runner (405) is fixedly arranged on the shaft body of the rotating shaft (401) below the central plate (503). A plurality of arc-shaped protrusions (406) are fixedly arranged on the circumferential side wall of the runner (405), and the plurality of arc-shaped protrusions (406) are annularly and spacedly distributed. The material-turning component (70) includes an L-shaped piston rod (702), an annular block (703), a spray pipe (704), a piston pipe (705), and an elastic member (706). The piston pipe (705) is fixedly installed on the inner bottom wall of the water cylinder (20). The piston pipe (705) is distributed along the radial direction of the water cylinder (20). One end of the L-shaped piston rod (702) extends into the piston pipe (705) and is telescopically matched with the piston pipe (705). The annular stopper (703) is fixedly arranged outside the L-shaped piston rod (702). One end of the elastic member (706) is connected to the annular stopper (703), and the other end is connected to the piston tube (705), and is used to provide elastic support for the L-shaped piston rod (702). There are several groups of spray nozzles (704), and several of the spray nozzles (704) are fixedly arranged on the upper part of the piston tube (705) and are spaced along the length direction of the piston tube (705).

5. The seed screening device according to claim 4, characterized in that, A guiding inclined rod (701) is fixedly arranged at one end of the L-shaped piston rod (702) away from the piston tube (705).

6. The seed screening device according to claim 2, characterized in that, The fishing component (60) includes a support rod (601) and a fishing belt (602). The support rod (601) is fixedly arranged on the outer wall of the rotating shaft (402). The support rod (601) is perpendicular to the rotating shaft (402). The fishing belt (602) is installed on one side of the support rod (601), and a number of uniformly distributed through holes (603) are formed in the fishing belt (602).

7. A seed screening device according to claim 6, characterized in that, The inside of the rotating shaft (402) is hollow, and a horizontally penetrating notch (403) is formed in the side wall of the rotating shaft (402). There are four groups of support rods (601), and the four groups of support rods (601) are distributed in pairs and are respectively fixedly arranged on the outer wall of the rotating shaft (402). The four groups of support rods (601) enclose a rectangular frame structure. A group of rollers (604) are respectively rotatably arranged at both ends of the inner sides of the four groups of support rods (601). The fishing belt (602) is in an annular structure, and the fishing belt (602) penetrates through the notch (403) and is sleeved between the two groups of rollers (604). The seed screening device further includes a third driving component (80). When the rotating shaft (402) drives the fishing belt (602) to rotate to fish out the bad seeds and shriveled seeds floating on the water surface, the third driving component (80) is used to drive the fishing belt (602) to operate relative to the two groups of rollers (604).

8. A seed screening device according to claim 7, characterized in that, The third driving component (80) includes a gear (801) and an annular rack (802). The gear (801) is fixedly arranged at the end of one of the rollers (604), and the annular rack (802) is fixedly arranged on the inner wall of the water cylinder (20) and can mesh with the gear (801).

9. A seed screening device according to claim 7, characterized in that, A scraper (404) is also fixedly arranged on the inner wall of the rotating shaft (402), and one end of the scraper (404) away from the inner wall of the rotating shaft (402) is in contact with the side wall of the fishing belt (602).

10. A seed screening device according to claim 7, characterized in that, A partition net (407) is detachably arranged at the bottom of the rotating shaft (402).

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