Seed preliminary screening device

Abstract

The seed primary screening device comprises a concentric-square-shaped mounting frame, a collecting box with the top open is placed below the concentric-square-shaped mounting frame, the collecting box is used for collecting seeds, a concentric-square-shaped moving frame is arranged in the concentric-square-shaped mounting frame, and a screening mechanism is mounted in the concentric-square-shaped moving frame. The left side of the concentric-square-shaped moving frame is fixedly connected with a first guide mechanism, the concentric-square-shaped mounting frame is arranged on the first guide mechanism in a sliding and sleeving mode, the first guide mechanism has the transverse guide effect on the concentric-square-shaped moving frame, and a reciprocating multi-stage electric telescopic rod is fixedly embedded in the left side of the concentric-square-shaped mounting frame; and the end part of an output shaft of the reciprocating multi-stage electric telescopic rod is fixedly connected with the first guide mechanism. Through the arrangement of a series of structures, multi-stage screening can be carried out on seeds, the screening precision is improved, wizened seeds and some broken leaves can be separated in the screening process, independent screening by personnel is not needed, and the quality of the screened seeds is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seed primary screening equipment, in particular to a seed primary screening device. Background Art

[0002] In order to ensure the germination rate and emergence rate of seeds and increase crop yields, relevant staff must use a seed primary screening device to screen the seeds before sowing. The screening device in the prior art has only one screen and can only screen the seeds once according to the particle size of the seeds. The seeds after screening are often mixed with many large-grained shriveled seeds and some broken leaves. These large impurities cannot be separated directly, and the impurities will also affect the quality of the seeds and cannot meet the use requirements. Based on the above situation, we propose a seed primary screening device. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a seed primary screening device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A seed primary screening device comprises a circular mounting frame, a collecting box with an opening at the top is placed below the circular mounting frame, the collecting box is used to collect seeds, a circular movable frame is arranged in the circular mounting frame, a screening mechanism is installed in the circular movable frame, a first guide mechanism is fixedly connected to the left side of the circular movable frame, the circular mounting frame is slidably sleeved on the first guide mechanism, the first guide mechanism has a lateral guiding effect on the circular movable frame, a reciprocating multi-stage electric telescopic rod is embedded and fixed on the left side of the circular mounting frame, the output shaft end of the reciprocating multi-stage electric telescopic rod is fixedly connected to the first guide mechanism, the reciprocating multi-stage electric telescopic rod is used to drive the circular mounting frame to cyclically move right and left, a second guide mechanism is fixedly connected to the right side of the circular movable frame, the circular mounting frame is slidably sleeved on the second guide mechanism, the second guide mechanism has a lateral guiding effect on the circular movable frame, and a reciprocating multi-stage electric telescopic rod is embedded and fixed on the left side of the circular mounting frame, the output shaft end of the reciprocating multi-stage electric telescopic rod is fixedly connected to the first guide mechanism, the reciprocating multi-stage electric telescopic rod is used to drive the circular mounting frame to move right and left cyclically, A suction mechanism matched with the screening mechanism is provided, and the suction mechanism is used to suck the inside of the circular moving frame, and the top of the suction mechanism extends to the top of the circular mounting frame, and the right top of the circular mounting frame is connected with a filtering mechanism, and the filtering mechanism is used to filter and block the shriveled seeds and some broken leaves sucked out, and the top of the filtering mechanism is connected and fixed with a conical cover, and the top of the conical cover is connected and fixed with the suction mechanism, and a suction pump is embedded and fixed at the bottom of the filtering mechanism, and the suction pump is used to provide suction force, and two first collision blocks are fixedly connected to the left inner wall of the circular mounting frame, and the right sides of the two first collision blocks are both in active contact with the left side of the circular moving frame, and a second collision block matched with the circular moving frame is fixedly connected to the right inner wall of the circular mounting frame, and the second collision block and the second collision block are set, so that they can collide with the second collision block and the second collision block during the movement of the circular moving frame to generate vibration force.

[0006] Preferably, the screening mechanism includes three filter screens movably mounted in a circular movable frame, the three filter screens are used for multi-stage filtration of seeds, the filter holes on the three filter screens decrease sequentially from top to bottom, two adjacent filter screens are fixedly connected with two connecting rods, the filter screen at the bottom is magnetically fixed to the inner walls on both sides of the circular movable frame, the filter screen at the top is fixedly connected with a U-shaped rod on the top, and the three filter screens can be removed by the U-shaped rod, and a cover plate is magnetically fixed to the top of the circular movable frame, the bottom of the cover plate is movably contacted with the top of the U-shaped rod, and the top of the cover plate is fixedly connected with a U-shaped handle, and the cover plate can be removed by the U-shaped handle.

[0007] Preferably, the first guide mechanism includes two guide plates fixedly connected to the left side of the circular moving frame, the left side of the guide plate extends to the left side of the circular mounting frame, the circular mounting frame is slidably sleeved on the two guide plates, the left sides of the two guide plates are fixedly connected to the same first moving plate, the left end of the output shaft of the reciprocating multi-stage electric telescopic rod is fixedly connected to the right side of the first moving plate, and the reciprocating multi-stage electric telescopic rod is used to drive the first moving plate to move right and left in a cycle.

[0008] Preferably, the second guiding mechanism includes four guide rods fixedly connected to the right side of the circular moving frame, the right ends of the four guide rods extend to the right side of the circular mounting frame and are fixedly connected to the same second movable plate, the circular mounting frame is slidably mounted on the four guide rods, and the four guide rods have a lateral guiding effect on the circular moving frame.

[0009] Preferably, the suction mechanism includes three wind collecting hoods embedded and fixed on the right side of the circular movable frame, the wind collecting hoods are located above the corresponding filter screens, and a telescopic hose is connected and fixed to the right side of the wind collecting hoods. The telescopic characteristics of the telescopic hose can be used to provide the circular movable frame with a left and right moving distance. An L-shaped tube is provided in the circular mounting frame, and the L-shaped tube is located between the two upper guide rods. The top of the L-shaped tube extends to the top of the circular mounting frame, the right end of the telescopic hose is connected and fixed to the left side of the L-shaped tube, and the right end and bottom end of the L-shaped tube are both set as blocking structures, and the top of the conical hood is connected and fixed to the inner top of the L-shaped tube.

[0010] Preferably, the filtering mechanism includes a filter box fixedly connected to the right side of the circular mounting frame, the top of the filter box is set to an opening and is connected and fixed to the bottom of the conical cover, a filter screen is movably sleeved in the filter box, a support block is fixedly connected to the left inner wall of the filter box, the top of the support block is movably contacted with the bottom of the filter screen, a connecting block is fixedly connected to the right side of the filter screen, the filter screen is used to filter and block shriveled seeds and some broken leaves, the filter box is movably sleeved on the connecting block, a pull ring is fixedly connected to the right side of the connecting block, and the filter screen can be removed from the filter box through the pull ring and the connecting block, and the suction pump is embedded and fixed at the bottom of the filter box, and the top of the suction pump is an extraction end and is connected to the interior of the filter box.

[0011] Preferably, a card box is fixedly connected to the inner walls on both sides of the circular movable frame, the top of the card box is set to be an opening, a first magnet is fixedly installed in the card box, and second magnets are fixedly connected to both sides of the bottom of the filter screen located at the bottom, the second magnet is movably sleeved in the corresponding card box and adsorbed to the top of the first magnet, and the filter screen can be quickly fixed by the first magnet and the second magnet.

[0012] Compared with the existing technology, the beneficial effects of the utility model are:

[0013] 1. Through the coordination of the reciprocating multi-stage electric telescopic rod, the first guide mechanism, the second guide mechanism, the circular moving frame and the screening mechanism, the seeds can be screened at multiple levels to improve the screening accuracy;

[0014] 2. Through the combination of the suction mechanism, the filtering mechanism and the suction pump, the shriveled seeds and some broken leaves can be separated during the screening process, without the need for personnel to screen separately, thus improving the quality of the screened seeds and being able to reduce the separation of shriveled seeds and some broken leaves;

[0015] The utility model can perform multi-stage screening on seeds and improve screening accuracy through the arrangement of a series of structures, and can separate shriveled seeds and some broken leaves during the screening process, without the need for separate screening by personnel, thereby improving the quality of the screened seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a seed primary screening device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of a seed primary screening device proposed by the utility model;

[0018] Figure 3 Based Figure 2 Schematic diagram of the enlarged structure of part A.

[0019] In the figure: 100, circular installation frame; 1, collecting box; 2, circular moving frame; 3, first moving plate; 4, guide plate; 5, multi-stage electric telescopic rod; 6, guide rod; 7, filter screen; 8, cover plate; 9, connecting rod; 10, second collision block; 11, L-shaped pipe; 12, wind collecting hood; 13, telescopic hose; 14, conical hood; 15, filter box; 16, suction pump; 17, filter screen; 18, connecting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3A seed primary screening device comprises a circular installation frame 100, a collecting box 1 with an opening at the top is placed below the circular installation frame 100, wherein two supporting legs are fixedly connected to both sides of the bottom of the circular installation frame 100, and the collecting box 1 is located between the four supporting legs. The collecting box 1 is used to collect seeds, and a circular moving frame 2 is arranged inside the circular installation frame 100, and a screening mechanism is installed in the circular moving frame 2, wherein the screening mechanism comprises three filter screens 7 movably sleeved in the circular moving frame 2, and the front side, rear side, and The left and right sides are in active contact with the front inner wall, rear inner wall, left inner wall and right inner wall of the circular movable frame 2 respectively. The three filter screens 7 are used for multi-stage filtering of seeds. The filter holes on the three filter screens 7 decrease from top to bottom. Two adjacent filter screens 7 are fixedly connected with two connecting rods 9. The connection between the two adjacent filter screens 7 is achieved by the connecting rods 9. The filter screen 7 at the bottom is magnetically fixed to the inner walls on both sides of the circular movable frame 2. The inner walls on both sides of the circular movable frame 2 are fixedly connected with card boxes. The card boxes The top of the card box is set as an opening, a first magnet is fixedly installed in the card box, and the bottom two sides of the filter screen 7 at the bottom are fixedly connected with second magnets, the second magnet is movably sleeved in the corresponding card box and adsorbed with the top of the first magnet, the filter screen 7 can be quickly fixed by the first magnet and the second magnet, the top of the filter screen 7 at the top is fixedly connected with a U-shaped rod, and the three filter screens 7 can be removed by the U-shaped rod, and the top of the circular movable frame 2 is magnetically fixed with a cover plate 8, wherein the top two sides of the circular movable frame 2 are fixedly connected with the second magnets. Three magnets, grooves are provided on both sides of the bottom of the cover plate 8, the side and the front side of the two grooves away from each other are set as openings, a fourth magnet is fixedly connected to the top inner wall of the groove, the third magnet is movably sleeved in the corresponding groove and adsorbed with the bottom of the fourth magnet, and the cover plate 8 is quickly fixed by the third magnet and the fourth magnet, the cover plate 8 is used to cover the top of the circular moving frame 2, the bottom of the cover plate 8 is movably in contact with the top of the U-shaped rod, and a U-shaped handle is fixedly connected to the top of the cover plate 8, and the cover plate 8 can be removed by the U-shaped handle;

[0022] The left side of the circular moving frame 2 is fixedly connected with a first guide mechanism, and the circular installation frame 100 is slidably sleeved on the first guide mechanism, wherein the first guide mechanism includes two guide plates 4 fixedly connected to the left side of the circular moving frame 2, and the left side of the guide plate 4 extends to the left side of the circular installation frame 100, and the circular installation frame 100 is slidably sleeved on the two guide plates 4, wherein two first rectangular holes are opened on the left inner wall of the circular installation frame 100, and the inner wall of the first rectangular hole is slidably sleeved with the outer side of the corresponding guide plate 4, and the left sides of the two guide plates 4 are fixedly connected with the same first moving plate 3;

[0023] A reciprocating multi-stage electric telescopic rod 5 is embedded and fixed on the left side of the circular installation frame 100, and the left end of the output shaft of the reciprocating multi-stage electric telescopic rod 5 is fixedly connected to the right side of the first movable plate 3. The reciprocating multi-stage electric telescopic rod 5 is used to drive the first movable plate 3 to move right and left in a cycle. A second guide mechanism is fixedly connected to the right side of the circular movable frame 2, and the circular installation frame 100 is slidably sleeved on the second guide mechanism, wherein the second guide mechanism includes four guide rods 6 fixedly connected to the right side of the circular movable frame 2, and the right ends of the four guide rods 6 all extend to the right side of the circular installation frame 100 and are fixedly connected to the same second movable plate, and the circular installation frame 100 is slidably sleeved on the four guide rods 6, wherein four guide holes are opened on the right inner wall of the circular installation frame 100, and the inner walls of the guide holes are in active contact with the outer sides of the corresponding guide rods 6, and the four guide rods 6 have a lateral guiding effect on the circular movable frame 2;

[0024] A suction mechanism is embedded and fixed on the right side of the circular movable frame 2, and the top of the suction mechanism extends to the top of the circular installation frame 100, wherein the suction mechanism includes three air collecting hoods 12 embedded and fixed on the right side of the circular movable frame 2, and the air collecting hoods 12 are located above the corresponding filter screens 7, wherein three mounting holes are opened on the right inner wall of the circular movable frame 2, and the inner walls of the mounting holes are fixedly connected to the outer sides of the corresponding air collecting hoods 12, and a telescopic hose 13 is connected and fixed to the right side of the air collecting hood 12, and the telescopic characteristics of the telescopic hose 13 can be used to provide the circular movable frame 2 with a distance for moving left and right, and an L-shaped tube 11 is arranged in the circular installation frame 100, and the top of the L-shaped tube 11 extends to the top of the circular installation frame 100, and the right end of the telescopic hose 13 is connected and fixed to the left side of the L-shaped tube 11, and the right end and the bottom end of the L-shaped tube 11 are both set as blocking structures;

[0025] A filter mechanism is connected to the top right side of the circular mounting frame 100, wherein the filter mechanism includes a filter box 15 fixedly connected to the right side of the circular mounting frame 100, a cone cover 14 is connected and fixed to the top of the filter box 15, the top of the cone cover 14 is connected and fixed to the inner top of the L-shaped tube 11, a filter screen 17 is movably sleeved in the filter box 15, a support block is fixedly connected to the left inner wall of the filter box 15, the top of the support block is movably in contact with the bottom of the filter screen 17, and the support block is used to adjust the filter screen 17. The left side is supported, the right side of the filter screen 17 is fixedly connected with a connecting block 18, the filter screen 17 is used to filter and block the shriveled seeds and some broken leaves, the filter box 15 is movably sleeved on the connecting block 18, wherein a through hole is opened on the right inner wall of the filter box 15, the inner wall of the through hole is slidably sleeved with the outer side of the connecting block 18, the through hole is used for the filter screen 17 to be removed, and the right side of the connecting block 18 is fixedly connected with a pull ring, and the filter screen 17 can be removed from the filter box 15 through the pull ring and the connecting block 18;

[0026] A suction pump 16 is embedded and fixed at the bottom of the filter box 15, and the top of the suction pump 16 is an extraction end and is connected to the interior of the filter box 15, and the suction pump 16 is used to provide suction force. Two first collision blocks are fixedly connected to the left inner wall of the circular installation frame 100, and the right sides of the two first collision blocks are in active contact with the left side of the circular moving frame 2. A second collision block 10 that cooperates with the circular moving frame 2 is fixedly connected to the right inner wall of the circular installation frame 100. The second collision block and the second collision block 10 are set so that they can collide with the second collision block and the second collision block 10 during the movement of the circular moving frame 2 to generate vibration force. The utility model can perform multi-stage screening of seeds and improve screening accuracy through the setting of a series of structures, and can separate shriveled seeds and some broken leaves during the screening process, without the need for personnel to screen separately, thereby improving the quality of screened seeds.

[0027] Working principle: When using, when screening seeds, pull the U-shaped handle upward to drive the cover plate 8 to separate from the top of the circular moving frame 2, and remove the shielding of the top of the circular moving frame 2. Then, pour the seeds to be screened into the circular moving frame 2, and block the cover plate 8 on the top of the circular moving frame 2 again, and the seeds are located on the top of the uppermost filter screen 7. Then, turn on the multi-stage electric telescopic rod 5, and the output shaft of the multi-stage electric telescopic rod 5 drives the first moving plate 3 to move right and left in a cycle, and the first moving plate 3 drives the two guide plates 4 to move right and left in a cycle, and the two guide plates 4 simultaneously The circular moving frame 2 is driven to move right and left in a circular motion, and the circular moving frame 2 drives the three filter screens 7 to move right and left in a circular motion. The circular moving frame 2 moves to the right until it collides with the second collision block 10, so that the circular moving frame 2 vibrates, thereby vibrating the filter screen 7. Under the vibration force, the seeds on the top of the filter screen 7 pass through the three filter screens 7 in sequence according to their particle sizes, and fall into the collection box 1. The collection box 1 collects the fallen seeds, and the three filter screens 7 screen the seeds of different particle sizes into four parts, thereby achieving the effect of multi-stage screening of seeds and improving the screening accuracy.

[0028] While screening, the suction pump 16 is turned on, and the suction pump 16 sucks the tops of the three filter screens 7 through the conical cover 14, the L-shaped tube 11, the three telescopic hoses 13 and the three wind collecting covers 12 in turn. Since the weight of the shriveled seeds and some broken leaves is lighter than the weight of the full seeds, under the suction force, the force of the filter screen 7 to drive the seeds to vibrate in a cycle can be used to reduce the vibration of the seeds, so that the lighter shriveled seeds and some broken leaves enter the filter box 15 through the wind collecting cover 12, the telescopic hose 13, the L-shaped tube 11 and the conical cover 14 in turn, and the filter screen 17 blocks the shriveled seeds and some broken leaves at its top, thereby achieving the purpose of automatically separating the shriveled seeds and some broken leaves during the screening process, without the need for personnel to screen separately, thereby improving the quality of the screened seeds;

[0029] After screening, the pull ring can be pulled to the right to drive the filter screen 17 to move out of the filter box 15 through the connecting block 18, so that the shriveled seeds and some broken leaves on the filter screen 17 can be cleaned; at the same time, the U-shaped handle is pulled upward to drive the cover plate 8 to move upward and separate from the circular moving frame 2, thereby removing the obstruction on the top of the circular moving frame 2, and then the U-shaped rod can be pulled upward to drive the three filter screens 7 to move out of the circular moving frame 2 in turn, so that the seeds on the top of the three screened filter screens 7 can be taken out, and the screening is completed.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seed primary screening device, comprising a circular mounting frame (100), characterized in that: A collecting box (1) with an opening at the top is placed below the circular installation frame (100), a circular moving frame (2) is arranged inside the circular installation frame (100), a screening mechanism is installed inside the circular moving frame (2), a first guide mechanism is fixedly connected to the left side of the circular moving frame (2), the circular installation frame (100) is slidably sleeved on the first guide mechanism, a reciprocating multi-stage electric telescopic rod (5) is embedded and fixed on the left side of the circular installation frame (100), the output shaft end of the reciprocating multi-stage electric telescopic rod (5) is fixedly connected to the first guide mechanism, a second guide mechanism is fixedly connected to the right side of the circular moving frame (2), the circular installation frame (100) is slidably sleeved on the second guide mechanism, the circular moving frame ( A suction mechanism matched with the screening mechanism is embedded and fixed on the right side of the circular mounting frame (2), the top of the suction mechanism extends to the top of the circular mounting frame (100), the top of the right side of the circular mounting frame (100) is connected with a filtering mechanism, the top of the filtering mechanism is connected and fixed with a conical cover (14), the top of the conical cover (14) is connected and fixed with the suction mechanism, the bottom of the filtering mechanism is embedded and fixed with a suction pump (16), two first collision blocks are fixedly connected to the left inner wall of the circular mounting frame (100), the right sides of the two first collision blocks are both in active contact with the left side of the circular movable frame (2), and a second collision block (10) matched with the circular movable frame (2) is fixedly connected to the right inner wall of the circular mounting frame (100).

2. A seed primary screening device according to claim 1, characterized in that: The screening mechanism comprises three filter screens (7) movably sleeved in a circular movable frame (2), the filter holes on the three filter screens (7) are reduced in size from top to bottom, two adjacent filter screens (7) are fixedly connected with two connecting rods (9), the filter screen (7) located at the bottom is magnetically fixed to the inner walls of both sides of the circular movable frame (2), the top of the filter screen (7) is fixedly connected with a U-shaped rod, the top of the circular movable frame (2) is magnetically fixed with a cover plate (8), the bottom of the cover plate (8) is movably in contact with the top of the U-shaped rod, and the top of the cover plate (8) is fixedly connected with a U-shaped handle.

3. A seed primary screening device according to claim 2, characterized in that: The first guide mechanism comprises two guide plates (4) fixedly connected to the left side of the circular movable frame (2), the left side of the guide plate (4) extending to the left side of the circular mounting frame (100), the circular mounting frame (100) being slidably sleeved on the two guide plates (4), the left sides of the two guide plates (4) being fixedly connected to the same first movable plate (3), and the left end of the output shaft of the reciprocating multi-stage electric telescopic rod (5) being fixedly connected to the right side of the first movable plate (3).

4. A seed primary screening device according to claim 3, characterized in that: The second guide mechanism comprises four guide rods (6) fixedly connected to the right side of the circular movable frame (2), the right ends of the four guide rods (6) all extend to the right side of the circular installation frame (100) and are fixedly connected to the same second movable plate, and the circular installation frame (100) is slidably sleeved on the four guide rods (6).

5. A seed primary screening device according to claim 4, characterized in that: The suction mechanism comprises three air collecting hoods (12) embedded and fixed on the right side of the circular movable frame (2), the air collecting hoods (12) being located above the corresponding filter screens (7), a telescopic hose (13) being connected and fixed to the right side of the air collecting hood (12), an L-shaped tube (11) being arranged inside the circular installation frame (100), the top of the L-shaped tube (11) extending to the top of the circular installation frame (100), the right end of the telescopic hose (13) being connected and fixed to the left side of the L-shaped tube (11), the right end and the bottom end of the L-shaped tube (11) being both provided with blocking structures, and the top of the conical hood (14) being connected and fixed to the inner top of the L-shaped tube (11).

6. A seed primary screening device according to claim 5, characterized in that: The filtering mechanism comprises a filter box (15) fixedly connected to the right side of the circular mounting frame (100); the top of the filter box (15) is set as an opening and is connected and fixed to the bottom of the conical cover (14); a filter screen (17) is movably sleeved in the filter box (15); a support block is fixedly connected to the left inner wall of the filter box (15); the top of the support block is in movable contact with the bottom of the filter screen (17); a connecting block (18) is fixedly connected to the right side of the filter screen (17); the filter box (15) is movably sleeved on the connecting block (18); a pull ring is fixedly connected to the right side of the connecting block (18); a suction pump (16) is embedded and fixed at the bottom of the filter box (15); the top of the suction pump (16) is an extraction end and is connected to the inside of the filter box (15).

7. A seed primary screening device according to claim 2, characterized in that: A card box is fixedly connected to the inner walls on both sides of the circular movable frame (2), the top of the card box is set as an opening, a first magnet is fixedly installed in the card box, and second magnets are fixedly connected to both sides of the bottom of the filter screen (7) at the bottom, and the second magnet is movably sleeved in the corresponding card box and adsorbed to the top of the first magnet.

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