Particle seed disinfection disseminator
Technical Field
The invention belongs to the technical field of agricultural biological laboratory equipment, and particularly relates to a particle seed disinfection seeder.
Background
In basic research of plants, the model plant Arabidopsis thaliana is often used as a research object. When arabidopsis thaliana is cultivated in a laboratory, firstly, arabidopsis thaliana of various genotypes needs to be disinfected by various reagents in sequence, and then the arabidopsis thaliana is respectively inoculated into different culture media for sterile germination and cultivation. The current commonly used mode of particle seed disinfection is generally that seeds of different genotypes are contained in a plurality of EP tubes, then sodium hypochlorite is added for sterilization for a few minutes, vibration and shaking are carried out continuously during the period, then the sterilization liquid is poured out, sterile water is added for cleaning for a few minutes, vibration and shaking are also needed during the same period, the seeds are repeatedly rinsed for a few times by the sterile water, and finally the seeds are moved into a culture medium by a pipette tip or a rubber head dropper.
In the research process, arabidopsis seeds with various genotypes are needed, and the time and the labor are consumed by sodium hypochlorite and a plurality of times of sterile water cleaning procedures; the arabidopsis seed particles are small (smaller than 1mm), the arabidopsis seed particles are respectively dibbled to different culture media, the force is difficult to grasp in the dibbling process by using a liquid transferring gun head or a rubber head dropper, a plurality of seeds are frequently dibbled to one pile, and the grown seedlings are often entangled and are not convenient for seedling transplantation and phenotype observation. Therefore, several to several tens of seeds need to be separately planted, which increases the difficulty of the work and the time consumption, and increases the risk of fungal contamination in the air.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a particle seed disinfection seeder, wherein a seed containing box with a plurality of containing chambers is arranged in a disinfection box to disinfect arabidopsis thaliana seeds of various genotypes at one time, a seeding device is arranged on one side of the disinfection box, and after a seed suction switch is pressed once and a seeding switch is pressed once again, the seeding of one seed is completed, so that the precision seeding of the particle seeds is realized.
In order to achieve the purpose, the invention adopts the technical scheme that:
a particle seed disinfection seeder comprises a disinfection box, a seed containing box and a seeding device arranged on one side of the disinfection box, wherein the upper part of the disinfection box is hinged with a cover plate, one side of the lower part of the disinfection box is provided with a drain pipe, the drain pipe is provided with a ball valve (not shown in the figure), a tray is arranged in the disinfection box, the seed containing box is placed on the tray, a plurality of partition plates are arranged in the seed containing box to divide the seed containing box into a plurality of containing chambers, the arabidopsis thaliana seeds of various genotypes can be disinfected conveniently at the same time, and the lower part of each containing chamber is provided with a first seed leaking hole; the fence and the partition board of the seed containing box are of a net structure, and the diameter of the net is smaller than that of the seeds, so that the disinfection solution can freely circulate in the seed containing box, but the seeds cannot leak out; the upper part of the seed containing box is provided with an upper cover, and the lower part is provided with a lower cover.
When the seeds are disinfected, the lower cover is covered, the upper cover is opened, the seeds with different genotypes are poured into different containing chambers, then the upper cover is covered, the seed containing boxes are placed on a tray inside the disinfection box, and different disinfection solutions are poured into the disinfection box for cleaning specified time in different times.
A side door is arranged on one side of the seeding device, a seed changing plate is arranged in the seeding device, the lower part of the seed changing plate is arranged on a bottom plate of the seeding device through a plurality of vertical plates, a second seed leaking hole is arranged on the lower part of the seed changing plate, and one first seed leaking hole in the lower part of the seed containing box corresponds to the second seed leaking hole; the lower part of the upper wall of the seeding device is connected with a plurality of fixed baffles, one sides of the fixed baffles are provided with air bags, one sides of the air bags are connected with air pipes, the other ends of the air pipes are connected with four-way pipes, one sides of the four-way pipes are connected with second seed leaking holes through hoses, and the inner diameters of the four-way pipes are between one seed diameter and two seed diameters; a seed suction switch is arranged on one side of the air bag, one end of the seed suction switch is connected with a push plate, and a second spring is connected between the push plate and the inner wall of the seeding device.
A seeding switch is arranged on one side of the lower portion of the seed suction switch, a retaining ring is arranged at one end of the seeding switch, a tension spring is connected between the retaining ring and the inner wall of the seeding device, a second connecting rod is hinged to one end of the seeding switch, a push rod is hinged to the lower end of the second connecting rod, the lower end of the push rod is inserted into the four-way pipe in a clearance mode, and a seed discharging pipe extending out of the seeding device is arranged on the lower portion of the four-way pipe.
When sowing, the lower cover at the lower part of the seed containing box is taken down, the seed containing box is arranged on the seed changing plate, the first seed leaking hole and the second seed leaking hole are aligned, the seeds are not easy to directly fall into the seed leaking holes due to the tension of water because of less water existing in the seeds which are just sterilized, the seed suction switch is pressed at the moment, when the air bag returns to the original state, the seeds are sucked into the four-way pipe from the first seed leaking hole and the second seed leaking hole through the hoses, then the sowing switch is pressed, the sowing switch drives the push rod to downwards push in the four-way pipe through the second connecting rod, the seeds in the four-way pipe are discharged into a culture dish at the lower part of the sowing device through the seed discharging pipe, and the inner diameter of the four-way pipe is between one seed diameter and two seed diameters, so that one seed is discharged from the four-way pipe each time, and the precision of particle seeds is realized; after sowing seeds of one genotype, pressing the seed suction switch, rotating the seed containing box to make the other first seed leakage holes and the second seed leakage holes aligned and switched to seeds of the next genotype, and then releasing the seed suction switch to continue sowing.
As a further optimization of the technical scheme, a swing mechanism is arranged in the disinfection box, the swing mechanism comprises a motor arranged on the side wall of the disinfection box and a cylindrical cam arranged in the disinfection box, one side of the motor is connected with a rotating shaft, the cylindrical cam is fixedly connected with the rotating shaft, two ends of the cylindrical cam are arranged at the bottom of the disinfection box through a supporting plate, the upper part of the supporting plate is connected with a 'square' -shaped sliding plate in a sliding manner, the lower part of the sliding plate is connected with a deflector rod, the lower end of the deflector rod is arranged in a cam groove of the cylindrical cam, and the tray is arranged at the upper part of the sliding plate; a switch (not shown in the figure) is arranged on one side of the sterilizing box, and the switch is electrically connected with the motor through a lead and is used for starting and stopping the motor; during the seed disinfection, place the seed splendid attire case inside the tray, starter motor, the motor drives the cylinder cam through the pivot and rotates, and the cylinder cam passes through the driving lever and drives the slide and make reciprocal linear motion to rock about driving the inside seed splendid attire case of tray, improved the sterile efficiency of seed.
As a further preferred option of this technical scheme, slide upper portion is equipped with first spring, the upper end and the tray bottom fixed connection of first spring, and first spring has increased the range that the seed splendid attire box rocked, has strengthened the sterile effect of seed.
As a further preferred of this technical scheme, be connected with a plurality of side shields on the inner wall of disinfection case front and back both sides crisscross, the high parallel and level of side shield and tray, the side shield front end is triangle-shaped, and the projection distance of the side shield front end of controlling both sides is less than the diameter of tray for the tray produces the collision with the side shield when moving to side shield one side and interferes, thereby makes the seed splendid attire case when reciprocating motion about, rocks from beginning to end, has further strengthened the sterile effect of seed.
As a further preferred of this technical scheme, disinfect box one side is equipped with a plurality of guide rails, seeder one side is equipped with a plurality of conducting bars, conducting bar and guide rail clearance fit for seeder and disinfect box detachable installation, disinfect box or seeder exclusive use of being convenient for.
As a further preference of the technical scheme, a plurality of clamping blocks are arranged at the lower part of the seed containing box, the clamping blocks correspond to the partition plates in position, a plurality of first clamping grooves are arranged on the lower cover, and the clamping blocks are in interference fit with the first clamping grooves, so that the lower cover and the seed containing box can be conveniently and quickly disassembled; the seed changing plate is provided with a plurality of second clamping grooves which are in clearance fit with the clamping blocks, so that seeds of one genotype can be conveniently sown and then quickly and accurately switched to seeds of the next genotype.
As a further preferred option of this technical scheme, the mesh screen is installed to one side that the four-way pipe is close to the breather pipe, and the aperture of mesh screen is less than the diameter of seed for the air circulates in the breather pipe and the seed can't inhale in the breather pipe, has guaranteed the normal discharge of seed.
As a further optimization of the technical scheme, the airbag comprises a main airbag and an auxiliary airbag, the lower part of the main airbag is connected with a main pipe, the main pipe is communicated with a vent pipe, the lower part of the auxiliary airbag is connected with a first branch pipe, a first gate valve is arranged on the first branch pipe, one side of the first branch pipe is connected with a second branch pipe, one end of the second branch pipe is communicated with the outside, a second gate valve is arranged on the second branch pipe, the first gate valve is connected with the second gate valve through a linkage rod, and one end of the linkage rod is connected with the push plate through a first connecting rod; when pressing and inhaling kind of switch, first connecting rod drives the gangbar and moves right, and the gangbar drives the second push-pull valve and closes the second branch pipe, and the gangbar drives first push-pull valve and opens first branch pipe, and main gasbag and ballonet are simultaneously aerifyd to seed splendid attire box inside, and when loosening and inhaling kind of switch, the gangbar drives first push-pull valve and closes first branch pipe, and the second push-pull valve is opened simultaneously, and the main gasbag inhales the seed from seed splendid attire box one end, when inhaling the seed in the cross-channel, the ballonet reconversion has improved the efficiency of inhaling kind.
As a further preferred of this technical scheme, the four-way pipe lower extreme is connected with the third push-pull valve, and the lower extreme at the third push-pull valve is installed to the seed metering pipe, third push-pull valve one end articulates there is the third connecting rod, push rod one side is connected with the branch of L shape, and the lower extreme of branch is articulated with the upper end of third connecting rod, and when pressing the seeding switch, the push rod moves down and drives branch downstream, and branch drives the third push-pull valve through the third connecting rod and opens and make the seed pass through the seed metering pipe row down, loosens behind the seeding switch, and push rod upward movement, branch drive the third push-pull valve through the third connecting rod and close the seed metering pipe, and the seed is directly discharged from the seed metering pipe when having avoided the kind of suction.
The invention has the beneficial effects that:
1) the seed containing box with the plurality of containing chambers is arranged in the sterilizing box, the arabidopsis thaliana seeds with various genotypes are sterilized at one time, the seeding device is arranged on one side of the sterilizing box, and after the seed sucking switch is pressed once and the seeding switch is pressed once again, the seeding of one seed is completed, so that the precision seeding of the particle seeds is realized.
2) The inside swing mechanism that is equipped with of disinfect box during the seed disinfection, places seed containing box inside the tray, starter motor, and the motor drives the cylinder cam through the pivot and rotates, and the cylinder cam passes through the driving lever and drives the slide and make reciprocal linear motion to rock about driving the inside seed containing box of tray, improved the sterile efficiency of seed.
3) Slide upper portion is equipped with first spring, the upper end and the tray bottom fixed connection of first spring, and first spring has increased the range that seed splendid attire box rocked, has strengthened the sterile effect of seed.
4) The inner walls of the front side and the rear side of the disinfection box are connected with a plurality of side baffles in a staggered mode, the side baffles are flush with the height of the tray, the front ends of the side baffles are triangular, the projection distance of the front ends of the side baffles on the left side and the right side is smaller than the diameter of the tray, the tray is collided and interfered with the side baffles when moving to one side of the side baffles, the seed containing box is made to move leftwards and rightwards in a reciprocating mode, the front and back of the seed containing box are rocked, and the seed disinfection effect is further enhanced.
5) A plurality of guide rails are arranged on one side of the disinfection box, a plurality of guide bars are arranged on one side of the seeding device, and the guide bars are in clearance fit with the guide rails, so that the seeding device is detachably mounted on the disinfection box, and the disinfection box or the seeding device can be used independently.
6) The lower part of the seed containing box is provided with a plurality of clamping blocks, the clamping blocks correspond to the position of the partition plate, the lower cover is provided with a plurality of first clamping grooves, and the clamping blocks are in interference fit with the first clamping grooves, so that the lower cover and the seed containing box can be conveniently and quickly assembled and disassembled; the seed changing plate is provided with a plurality of second clamping grooves which are in clearance fit with the clamping blocks, so that the seeds of one genotype can be conveniently sown and then quickly and accurately switched to the seeds of the next genotype.
7) The mesh screen is installed to the four-way pipe near breather pipe one side, and the aperture of mesh screen is less than the diameter of seed for the air circulates in the breather pipe and the seed can't inhale in the breather pipe, has guaranteed the normal discharge of seed.
8) The air bag comprises a main air bag and an auxiliary air bag, the lower part of the main air bag is connected with a main pipe, the main pipe is communicated with the vent pipe, the lower part of the auxiliary air bag is connected with a first branch pipe, a first gate valve is arranged on the first branch pipe, one side of the first branch pipe is connected with a second branch pipe, one end of the second branch pipe is communicated with the outside, a second gate valve is arranged on the second branch pipe, and the first gate valve and the second gate valve are connected with the push plate through a first connecting rod and one end of a linkage rod; when pressing and inhaling kind of switch, first link drive the gangbar and move right, and the gangbar drives the second push-pull valve and closes the second branch pipe, and the gangbar drives first push-pull valve and opens first branch pipe, and main gasbag and ballonet are simultaneously aerifyd to seed containing box inside, and when loosening and inhaling kind of switch, the gangbar drives first push-pull valve and closes first branch pipe, and the second push-pull valve is opened simultaneously, and the main gasbag inhales the seed from seed containing box one end, and when inhaling the seed in the cross-under pipe, the ballonet reconversion has improved the efficiency of inhaling kind.
9) The lower extreme of four-way pipe is connected with the third push-pull valve, and the seed metering pipe is installed at the lower extreme of third push-pull valve, and third push-pull valve one end articulates there is the third connecting rod, and push rod one side is connected with the branch of L shape, and the lower extreme of branch is articulated with the upper end of third connecting rod, and when pressing the seeding switch, the push rod downstream drives branch downstream, and branch drives the third push-pull valve through the third connecting rod and opens and make the seed arrange through the seed metering pipe down, unclamps the seeding switch after, push rod upward movement, and branch drives the third push-pull valve through the third connecting rod and closes the seed metering pipe, and the seed is direct to be discharged in the seed metering pipe when having avoided inhaling.
Drawings
FIG. 1 is a schematic structural view of a seed-sowing device with a disinfection function for seeds.
FIG. 2 is an exploded view of a container in the seed sterilizer of the present invention.
FIG. 3 is a top view of the container in the seed sterilizer of the present invention.
FIG. 4 is a schematic view of the internal structure of a disinfection box in the particle seed disinfection seeder of the present invention.
FIG. 5 is a schematic structural view of a swing mechanism in the seed disinfection seeder of the present invention.
FIG. 6 is a schematic structural view of a seeding device in the micro-particle seed disinfection seeder of the present invention.
FIG. 7 is a schematic view of the internal structure of a seeding device in the micro-particle seed disinfection seeder of the present invention.
FIG. 8 is an assembly view of a seed changing disk and an air bag in the micro-particle seed disinfection seeder of the present invention.
FIG. 9 is a schematic view showing the assembly of a seeding switch in the micro-particle seed disinfection seeder of the present invention.
FIG. 10 is an assembly view of a main pipe and branch pipes of a seed seeder with a sterilizing device for granular seeds according to the present invention.
In the figure: 1. a sterilizing box; 11. a cover plate; 12. a drain pipe; 13. a tray; 14. a side dam; 15. a first spring; 16. a guide rail;
2. a swing mechanism; 21. a motor; 22. a rotating shaft; 23. a cylindrical cam; 24. a deflector rod; 25. a support plate; 26. a slide plate;
3. a seed containing box; 31. a partition plate; 32. an upper cover; 33. a lower cover; 34. a clamping block; 35. a first card slot; 36. a first leak hole;
4. a seeding device; 41. a side door; 42. conducting bars; 43. changing the seed plate; 431. a second card slot; 432. a vertical plate; 433. a second leak hole; 44. fixing a baffle plate; 45. an air bag; 451. a main airbag; 452. a ballonet; 453. a main pipe; 454. a first branch pipe; 455. a second branch pipe; 456. a first gate valve; 457. a second gate valve; 458. a linkage rod; 459. a first link; 46. a breather pipe; 47. a seed suction switch; 471. a second spring; 472. pushing the plate; 48. a seeding switch; 481. a tension spring; 482. a baffle ring; 483. a second link; 484. a push rod; 485. a strut; 486. a third link; 487. a third gate valve; 49. a four-way pipe; 491. a mesh screen; 492. a seed discharging pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 10, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a specific orientation, a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-3 and 7-8, a particle seed disinfection seeder comprises a disinfection box 1, a seed containing box 3 and a seeding device 4 arranged on one side of the disinfection box 1, wherein the upper part of the disinfection box 1 is hinged with a cover plate 11, one side of the lower part of the disinfection box 1 is provided with a drain pipe 12, the drain pipe 12 is provided with a ball valve (not shown in the figure), the disinfection box 1 is internally provided with a tray 13, the seed containing box 3 is placed on the tray 13, the seed containing box 3 is internally provided with a plurality of partition plates 31 which divide the seed containing box 3 into a plurality of containing chambers so as to be convenient for disinfecting arabidopsis thaliana seeds of various genotypes at the same time, and the lower part of each containing chamber is provided with a first seed leaking hole 36; the fence of the seed containing box 3 and the partition plate 31 are of a net structure, and the diameter of the net is smaller than that of the seeds, so that the disinfectant can freely circulate in the seed containing box 3, but the seeds cannot leak out; the seed container 3 is provided with an upper lid 32 at the upper part and a lower lid 33 at the lower part.
When the seeds are disinfected, the lower cover 33 is closed, the upper cover 32 is opened, the seeds with different genotypes are poured into different containing chambers, then the upper cover 32 is closed, the seed containing box 3 is placed on the tray 13 in the disinfection box 1, and different disinfection solutions are poured into the disinfection box 1 for cleaning for a set time in different times.
A side door 41 is arranged on one side of the seeding device 4, a seed changing disc 43 is arranged in the seeding device 4, the lower part of the seed changing disc 43 is arranged on a bottom plate of the seeding device 4 through a plurality of vertical plates 432, a second seed leaking hole 433 is arranged on the lower part of the seed changing disc 43, and one first seed leaking hole 36 in the lower part of the seed containing box 3 corresponds to the second seed leaking hole 433; the lower part of the upper wall of the seeding device 4 is connected with a plurality of fixed baffles 44, one side of each fixed baffle 44 is provided with an air bag 45, one side of each air bag 45 is connected with a vent pipe 46, the other end of each vent pipe 46 is connected with a four-way pipe 49, one side of each four-way pipe 49 is connected with a second seed leaking hole 433 through a hose, and the inner diameter of each four-way pipe 49 is between one seed diameter and two seed diameters; a seed suction switch 47 is arranged on one side of the air bag 45, one end of the seed suction switch 47 is connected with a push plate 472, and a second spring 471 is connected between the push plate 472 and the inner wall of the seeding device 4.
A seeding switch 48 is arranged on one side of the lower part of the seed suction switch 47, a baffle ring 482 is arranged at one end of the seeding switch 48, a tension spring 481 is connected between the baffle ring 482 and the inner wall of the seeding device 4, a second connecting rod 483 is hinged at one end of the seeding switch 48, a push rod 484 is hinged at the lower end of the second connecting rod 483, the lower end of the push rod 484 is inserted into a four-way pipe 49 at a clearance, and a seed sowing pipe 492 extending out of the seeding device 4 is arranged at the lower part of the four-way pipe 49.
When sowing, the lower cover 33 at the lower part of the seed holding box 3 is taken down, the seed holding box 3 is arranged on the seed changing plate 43, the first seed discharge hole 36 is aligned with the second seed discharge hole 433, because the seeds which are just sterilized have a small amount of water, the seeds are not easy to fall into the seed leaking holes directly due to the tension of the water, at the moment, the seed sucking switch 47 is pressed, when the air bag 45 returns to the original state, seeds are sucked into the four-way pipe 49 through the hoses from the first seed discharge hole 36 and the second seed discharge hole 433, then the seeding switch 48 is pressed, the seeding switch 48 drives the push rod 484 to push downwards in the four-way pipe 49 through the second connecting rod 483, the seeds in the four-way pipe 49 are discharged into a culture dish at the lower part of the seeding device 4 through the seed discharging pipe 492, the inner diameter of the four-way pipe 49 is between one seed diameter and two seed diameters, so that one seed is discharged from the four-way pipe 49 each time, and the precision seeding of the particle seeds is realized; after sowing seeds of one genotype, the seed suction switch 47 is pressed and is not placed, the seed containing box 3 is rotated to make the rest of the first seed discharge holes 36 and the second seed discharge holes 433 aligned and switched to the seeds of the next genotype, and then the seed suction switch 47 is released to continue sowing.
As shown in fig. 4-5, in the present embodiment, a swing mechanism 2 is disposed inside the sterilization box 1, the swing mechanism 2 includes a motor 21 mounted on a side wall of the sterilization box 1 and a cylindrical cam 23 disposed inside the sterilization box 1, a rotating shaft 22 is connected to one side of the motor 21, the cylindrical cam 23 is fixedly connected to the rotating shaft 22, two ends of the cylindrical cam 23 are mounted at the bottom of the sterilization box 1 through a support plate 25, a slide plate 26 shaped like a Chinese character kou is slidably connected to an upper portion of the support plate 25, a shift lever 24 is connected to a lower portion of the slide plate 26, a lower end of the shift lever 24 is disposed inside a cam groove of the cylindrical cam 23, and the tray 13 is mounted on an upper portion of the slide plate 26; a switch (not shown in the figure) is arranged on one side of the sterilizing box 1, and the switch is electrically connected with the motor 21 through a lead and is used for starting and stopping the motor 21; during the seed disinfection, place seed containing box 3 inside tray 13, starter motor 21, motor 21 drives cylindrical cam 23 through pivot 22 and rotates, and cylindrical cam 23 drives slide 26 through driving lever 24 and makes reciprocal linear motion to drive the inside seed containing box 3 of tray 13 and control and rock, improved the sterile efficiency of seed.
As shown in fig. 4-5, in this embodiment, the upper portion of the sliding plate 26 is provided with a first spring 15, the upper end of the first spring 15 is fixedly connected with the bottom of the tray 13, and the first spring 15 increases the shaking range of the seed containing box 3, thereby enhancing the seed disinfection effect.
As shown in fig. 4, in this embodiment, a plurality of side baffles 14 are connected to the inner walls of the front and rear sides of the sterilization box 1 in a staggered manner, the side baffles 14 are flush with the tray 13 in height, the front ends of the side baffles 14 are triangular, and the projection distance of the front ends of the side baffles 14 on the left and right sides is smaller than the diameter of the tray 13, so that the tray 13 collides and interferes with the side baffles 14 when moving to one side of the side baffles 14, and the seed containing box 3 is rocked back and forth while reciprocating left and right, thereby further enhancing the seed sterilization effect.
As shown in fig. 4 and 6, in this embodiment, a plurality of guide rails 16 are disposed on one side of the sterilization box 1, a plurality of guide bars 42 are disposed on one side of the seeding device 4, and the guide bars 42 are in clearance fit with the guide rails 16, so that the seeding device 4 and the sterilization box 1 can be detachably mounted, and the sterilization box 1 or the seeding device 4 can be used independently.
As shown in fig. 2-3 and 8, in this embodiment, a plurality of clamping blocks 34 are disposed on the lower portion of the seed containing box 3, the clamping blocks 34 correspond to the partition plate 31, a plurality of first clamping grooves 35 are disposed on the lower cover 33, and the clamping blocks 34 and the first clamping grooves 35 are in interference fit, so that the lower cover 33 and the seed containing box 3 can be quickly disassembled and assembled; the seed changing plate 43 is provided with a plurality of second clamping grooves 431, and the second clamping grooves 431 are in clearance fit with the clamping blocks 34, so that the seeds of one genotype can be conveniently and quickly and accurately switched to the seeds of the next genotype after being sown.
As shown in fig. 9, in the present embodiment, a mesh 491 is installed on one side of the four-way pipe 49 close to the air pipe 46, and the aperture of the mesh 491 is smaller than the diameter of the seed, so that the air circulates in the air pipe 46 and the seed cannot be sucked into the air pipe 46, thereby ensuring the normal discharge of the seed.
As shown in fig. 6 and 10, in the present embodiment, the airbag 45 includes a main airbag 451 and an auxiliary airbag 452, a main pipe 453 is connected to a lower portion of the main airbag 451, the main pipe 453 is communicated with the vent pipe 46, a first branch pipe 454 is connected to a lower portion of the auxiliary airbag 452, a first gate valve 456 is arranged on the first branch pipe 454, a second branch pipe 455 is connected to one side of the first branch pipe 454, one end of the second branch pipe 455 is communicated with the outside, a second gate valve 457 is arranged on the second branch pipe 455, the first gate valve 456 and the second gate valve 457 are connected by a linkage rod 458, and one end of the linkage rod 458 is connected with the push plate 472 by a first connecting rod 459; when the seed suction switch 47 is pressed, the first connecting rod 459 drives the linkage rod 458 to move rightwards, the linkage rod 458 drives the second gate valve 457 to close the second branch pipe 455, the linkage rod 458 drives the first gate valve 456 to open the first branch pipe 454, the main air bag 451 and the auxiliary air bag 452 inflate the interior of the seed containing box 3 simultaneously, when the seed suction switch 47 is loosened, the linkage rod 458 drives the first gate valve 456 to close the first branch pipe 454, meanwhile, the second gate valve 457 is opened, the main air bag 451 sucks seeds from one end of the seed containing box 3, when the seeds are sucked into the four-way pipe 49, the auxiliary air bag 452 recovers, and the seed suction efficiency is improved.
As shown in fig. 9, in this embodiment, the lower end of the four-way pipe 49 is connected with a third gate valve 487, the seed discharging pipe 492 is installed at the lower end of the third gate valve 487, one end of the third gate valve 487 is hinged with a third connecting rod 486, one side of the push rod 484 is connected with an L-shaped strut 485, the lower end of the strut 485 is hinged with the upper end of the third connecting rod 486, when the seeding switch 48 is pressed, the push rod 484 moves downward to drive the strut 485 to move downward, the strut 485 drives the third gate valve 487 to open through the third connecting rod 486 so that seeds are discharged through the seed discharging pipe 492, after the seeding switch 48 is released, the push rod 484 moves upward, the strut 485 drives the third gate valve 487 to close the seed discharging pipe 492 through the third connecting rod 486, so as to prevent the seeds from being directly discharged from the seed discharging pipe 492 during seed suction.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.