Screening device for saline-alkaline tolerant breeding of corn

Abstract

The invention belongs to the technical field of crop breeding screening, and particularly relates to a screening device for saline-alkaline tolerant corn breeding, in the screening device, different varieties of corn seeds are planted in cultivation cups in a breeding part, soil with the same saline-alkaline degree is contained in the cultivation cups, and the seedling culture condition of the corn seeds is monitored through manual observation / a camera; after a set time (after seedling culture is completed), the harvesting mechanism takes out the culture cups with successfully cultured seedlings from the lower part of the breeding part, pushes planting soil in the culture cups without cultured seedlings to the top end of the breeding part, cleans the planting soil out of the culture box from the soil outlet through the cleaning mechanism, and then takes out the culture cups from the lower part of the breeding part; all the cultivation cups are manually taken out of the cultivation box from the seedling outlet, and breeding is completed; planting soil and seedlings can be taken out through the harvesting mechanism, manual operation of workers is not needed, and the device is simple, rapid and small in workload.

Description

Technical Field

[0001] The invention belongs to the technical field of crop breeding and screening, and in particular relates to a screening device for corn salt-alkali tolerance breeding. Background Art

[0002] Corn is one of the most important food crops in the world. Salinization environment can cause salt stress. Compared with crops such as cotton, corn is more sensitive to salt stress. Corn can grow normally under conditions where the salt concentration is less than 0.24%, and the critical lethal salt content is 0.485%, which is a moderately salt-sensitive plant. Corn salt tolerance is a complex genetic trait controlled by multiple gene QTLs. In addition, due to the uneven distribution of salinity in saline-alkali land, the creation of salt-tolerant corn germplasm and variety breeding research are relatively lagging and progress is slow. Therefore, strengthening the genetic improvement of corn germplasm salt tolerance and then breeding salt-tolerant varieties is an important direction for corn breeding.

[0003] In the prior art, screening devices used for corn salt-alkali tolerance breeding mostly require manual removal of planting soil and seedlings from the cultivation tank after breeding is completed, which is inefficient and increases the labor intensity of the staff. Therefore, a screening device for corn salt-alkali tolerance breeding is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a screening device for corn salt-alkali tolerance breeding to solve the above problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A screening device for corn salt-alkali tolerance breeding, comprising:

[0007] The cultivation box has a soil outlet and a plurality of seedling outlets on the side wall, and the plurality of seedling outlets are arranged at equal intervals in the circumferential direction;

[0008] A breeding part is fixed in the cultivation box, the soil outlet is located above the breeding part, the bottom wall of the soil outlet is flush with the top surface of the breeding part, the seedling outlet is located below the breeding part, and the breeding part is detachably connected with a plurality of cultivation cups;

[0009] A plurality of harvesting mechanisms are arranged in the cultivation box and below the breeding section. The plurality of harvesting mechanisms are arranged one by one with the plurality of breeding cups. The movable ends of the harvesting mechanisms extend into the breeding cups. After the cultivation is completed, seedlings appear in the breeding cups. The harvesting mechanisms take the breeding cups out from below the breeding section. If no seedlings appear in the breeding cups, the harvesting mechanisms push the planting soil in the breeding cups out of the breeding cups to the top surface of the breeding section.

[0010] The cleaning mechanism is arranged above the breeding part, the movable end of the cleaning mechanism is in sliding contact with the top surface of the breeding part, and the movable end of the cleaning mechanism is arranged corresponding to the soil outlet.

[0011] In the screening device for corn salt-alkali tolerance breeding of the present invention, the breeding unit comprises:

[0012] A cultivation body, fixedly connected in the cultivation box, the cultivation body is located in the middle of the cultivation box, and the bottom wall of the soil outlet is flush with the top surface of the cultivation body;

[0013] A plurality of placement grooves are arranged in an array on the cultivation body, the placement grooves vertically penetrate the cultivation body, and the cultivation cups are slidably connected in the placement grooves;

[0014] A retaining ring is fixedly connected to the top of the inner wall of the placement groove, the top of the retaining ring is flush with the top surface of the cultivation body, the thickness of the retaining ring is equal to the thickness of the side wall of the cultivation cup, and the top of the cultivation cup abuts against the retaining ring;

[0015] The support plate is detachably connected to the inner wall of the incubator, and the top surface of the support plate abuts against the bottom end of the incubation cup.

[0016] In the screening device for corn salt-alkali tolerance breeding of the present invention, the harvesting mechanism comprises:

[0017] A telescopic rod, vertically fixed to the inner bottom wall of the incubator;

[0018] A push plate, vertically slidably connected in the cultivation cup;

[0019] The sleeve is coaxially fixed to the bottom end of the push plate, and the bottom end of the sleeve passes through the cultivation cup and the supporting plate and is detachably connected to the movable end of the telescopic rod.

[0020] In the screening device for corn salt-alkali tolerance breeding of the present invention, the cleaning mechanism comprises:

[0021] A first motor is fixedly connected to the outer side wall of the incubator;

[0022] A threaded rod, horizontally rotatably connected in the incubator;

[0023] a threaded block, threadedly connected to the outer side of the threaded rod;

[0024] A push plate is fixedly connected to the bottom end of the threaded block, the push plate is in sliding contact with the top surface of the cultivation body, and the push plate is arranged corresponding to the unearthing port.

[0025] In the screening device for salt-alkali tolerance breeding of corn of the present invention, a horizontal spray plate is arranged above the cultivation body, a slide groove is provided on the spray plate, the threaded block is slidably connected in the slide groove, a water passage cavity is provided in the spray plate, a plurality of spray holes are provided on the bottom surface of the spray plate, the plurality of spray holes are distributed in an array and are all connected to the water passage cavity, the water passage cavity is connected through a hose, one end of the hose away from the spray plate penetrates into a water tank and is connected to the water outlet end of a water pump, and the water tank is fixedly connected to the top of the cultivation box.

[0026] In the screening device for salt-alkali tolerance breeding of corn of the present invention, an air inlet is provided on one side of the cultivation box, the air inlet is located above the cultivation body, a second motor is fixedly connected to the air inlet via a support frame, and a plurality of fan blades are fixedly connected to the output shaft of the second motor at equal intervals in the circumferential direction;

[0027] The air inlet is arranged correspondingly and matched with the push plate.

[0028] In the screening device for corn salt-alkali tolerance breeding of the present invention, a second mounting groove is provided on the outer side wall of the sleeve, the axis of the second mounting groove is arranged horizontally, a limiting hole is coaxially provided at the bottom of the second mounting groove, the limiting hole passes through the sleeve, a baffle is slidably connected in the second mounting groove, a top pin is fixedly connected to the baffle, one end of the top pin is slidably connected in the limiting hole, the other end of the top pin passes through the second mounting groove, a second spring is arranged in the second mounting groove, and the two ends of the second spring are respectively fixedly connected to the baffle and the bottom of the second mounting groove;

[0029] The movable end of the telescopic rod is provided with a first installation groove, a limit pin is slidably connected in the first installation groove, the limit pin is adapted to and correspondingly arranged with the limit hole, a first spring is arranged in the first installation groove, and the two ends of the first spring are respectively fixedly connected to the limit pin and the bottom of the first installation groove.

[0030] In the screening device for corn salt-alkali tolerance breeding of the present invention, a first magnetic ring is circumferentially fixed to the inner bottom wall of the cultivation cup, the first magnetic ring is magnetically connected to a second magnetic ring, and the second magnetic ring is circumferentially fixed to the bottom wall of the push plate.

[0031] Compared with the prior art, the present invention has the following advantages and technical effects:

[0032] In the present invention, corn seeds of different varieties are planted in cultivation cups in the breeding section, and soil with the same salinity and alkali degree is placed in the cultivation cups. The seedling raising conditions of the corn seeds are monitored by manual observation / camera. After a set time (after the seedling raising is completed), the harvesting mechanism takes out the cultivation cups that have successfully cultivated seedlings from the bottom of the breeding section, and pushes the planting soil in the cultivation cups that have not cultivated seedlings to the top of the breeding section. The planting soil is cleaned out of the cultivation box from the soil outlet through the cleaning mechanism, and then the cultivation cups are taken out from the bottom of the breeding section. Then, all the cultivation cups are taken out of the cultivation box from the seedling outlet manually to complete the breeding.

[0033] In the present invention, the taking out of planting soil and seedlings can be achieved through the harvesting mechanism, and manual operation by staff is not required, which is simple, fast and has a small workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0037] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0038] Figure 4 for Figure 1 A partial enlarged view of point C in the middle;

[0039] Figure 5 for Figure 1 A partial enlarged view of point D in the middle;

[0040] Figure 6 A top view of the cultivation subject in the present invention;

[0041] Among them, 1. Cultivation box; 2. Telescopic rod; 3. Seedling outlet; 4. Soil outlet; 5. Cultivation body; 6. Water tank; 7. First motor; 8. Threaded block; 9. Push plate; 10. Spray plate; 11. Slide; 12. Water chamber; 13. Spray hole; 14. Air inlet; 15. Support frame; 16. Second motor; 17. Fan blade; 18. Pin; 19. Support plate; 20. Avoidance hole; 21. Placement slot; 22. Block ring; 23. Cultivation cup; 24. Sleeve; 25. Push plate; 26. First magnetic ring; 27. Second magnetic ring; 28. First mounting slot; 29. ​​First spring; 30. Limit pin; 31. Eject pin; 32. Second spring; 33. Second mounting slot; 34. Limit hole; 35. Block plate; 36. Threaded rod. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Corn is one of the three major crops in my country and is a major feed and food crop. In recent years, under the combined effects of extreme natural conditions (low rainfall) and human factors (irrigation-dependent farming patterns), salinization of cultivated land in major corn-producing areas such as northern my country and the Huanghuaihai Plain has become increasingly serious, and has become one of the main environmental factors leading to reduced corn production. Therefore, it is of great theoretical and practical significance to systematically analyze the molecular genetic basis of corn salt tolerance, deeply explore the potential of corn salt tolerance, and cultivate salt-tolerant corn varieties. The damage of salt stress to crops is mainly reflected in two aspects: osmotic stress and ion poisoning. During the evolution process, crops have also developed a series of mechanisms to tolerate osmotic stress and ion poisoning. For example, crops accumulate a large amount of osmotic regulating substances in the cytoplasm to reduce the osmotic potential difference between the inside and outside of the membrane, thereby coping with the osmotic stress caused by salt stress; crops reduce Na by ion efflux and ion regionalization. + , Cl -Excessive accumulation of salt ions such as glycine in the cytoplasm, thereby reducing ion toxicity. Therefore, the breeding of salt-tolerant crops (such as corn) requires the coordinated improvement of their osmotic stress resistance and ion homeostasis maintenance ability. The genetic diversity of natural corn populations is very rich, and there are significant differences in the tolerance of different corn inbred lines to salt stress. There is increasing evidence that corn salt tolerance is a quantitative trait controlled by multiple genes. For example, studies have shown that there are significant differences in the content of osmotic regulating substances in different corn inbred lines (such as glycine, betaine, etc.), and multiple QTLs genes related to osmotic regulation have been cloned; using Na + , K + Content was used as an indicator, and several regulatory genes for maize Na + , K + QTLs genes for homeostasis and salt tolerance; using mortality, biomass, etc. as indicators, a series of candidate genes related to maize salt tolerance were identified through genome-wide association study (GWAS), metabolite-based genome-wide association study (mGWAS), linkage analysis, etc. These studies revealed the polygenic genetic basis of maize salt tolerance variation and provided important genetic resources and genetic materials for breeding salt-tolerant maize.

[0045] In the related art, a sweet corn breeding and cultivation device includes: a cultivation frame;

[0046] There are multiple cultivation tanks, which are arranged inside the cultivation rack;

[0047] The water delivery pipe has two ends fixedly connected to the top of the cultivation frame, and a plurality of atomizing nozzles are evenly installed in a linear arrangement at the bottom;

[0048] The water outlet structure is arranged in the water delivery pipe and is used to control the intermittent water outlet of the atomizing nozzle;

[0049] The water outlet structure includes a rotating pipe connected to the top of the culture frame through a bearing.

[0050] The connection of the tubes is connected and fixedly connected to the cultivation rack; one end of the rotating tube away from the cultivation rack is rotationally connected to one end of the water inlet pipe, and the other end of the water inlet pipe is connected and fixedly connected to a water tank, and a water pump is provided between the water tank and the water inlet pipe; the interior of the rotating tube is fixedly connected to a fixed frame; one end of the fixed frame extends into the water supply pipe and is fixedly connected to a connecting rod, and both ends of the connecting rod are fixedly connected to a blocking plate, which is arranged in an arc shape and fits tightly with the inner wall of the water supply pipe, so as to intermittently block the water outlet of the atomizing nozzle; a driving assembly is provided on the outside of the rotating tube.

[0051] Two transmission shafts are rotatably connected between the two inner side walls of the cultivation frame via bearings; sprockets are fixedly connected to both ends of the transmission shaft; chains are respectively sleeved between the two sprockets on the same side, and the chains are respectively engaged with the sprockets; the cultivation troughs are evenly arranged on the outside of the chains through connecting components; a motor is fixedly connected to the cultivation frame, and the output shaft of the motor is fixedly connected to one end of the transmission shaft.

[0052] The driving assembly includes a first rotating wheel, a second rotating wheel, a first gear and a second gear; the first gear is fixedly connected to one end of the upper transmission shaft; the second gear is rotatably connected to the cultivation frame through a rotating shaft; the first gear is meshed with the second gear; the first rotating wheel is fixedly connected to the rotating shaft and is arranged on the outside of the second gear; the second rotating wheel is fixedly connected to the outside of the rotating tube, and a transmission belt is sleeved between the first rotating wheel and the second rotating wheel.

[0053] The number of teeth of the first gear is ten times that of the second gear, and the circumference of the first rotating wheel is the same as that of the second rotating wheel.

[0054] The connecting assembly includes mounting frames connected to the two ends of the cultivation tank by two bolts. The mounting frames are arranged in a triangle shape. The top ends of the two mounting frames are rotatably connected to a rotating shaft through a bearing. Both ends of the rotating shaft are fixedly connected to a supporting frame, and the supporting frame is fixedly connected to the chain.

[0055] The bottom of the cultivation tank is fixedly connected with an inclined plate; the cultivation tank is slidably connected with a permeation plate, which is arranged above the inclined plate; the top of the permeation plate is provided with a breeding tray; the bottom of the breeding tray is provided with a permeation hole; the bottom of the inclined plate is connected and fixedly connected with a drainage pipe, and a solenoid valve is installed on the drainage pipe.

[0056] Two first screw rods and two second screw rods are respectively threadedly connected to the side walls of the permeation plate; the outer sides of the first screw rods are fixedly connected to the first rotating wheel; the outer sides of the second screw rods are fixedly connected to the second rotating wheel and the third rotating wheel, and the first belt is sleeved between the second rotating wheel and the first rotating wheel; the second belt is sleeved between the third rotating wheels; the top of one of the first screw rods is fixedly connected to a rotating block.

[0057] The bottom of the cultivation tank is fixedly connected with a photoelectric switch 1; the inner wall of the bottom end of the cultivation rack is fixedly connected with a side plate; the top of the side plate is fixedly connected with a photoelectric switch 2; the photoelectric switch 1 is electrically connected to the photoelectric switch 2 respectively, and the photoelectric switch 1 is electrically connected to the corresponding solenoid valve.

[0058] The bottom of the cultivation frame is fixedly connected with a water tank; the bottom end of the water tank is connected and fixedly connected with one end of a water outlet pipe, the other end of the water outlet pipe penetrates the cultivation frame and is connected and fixedly connected to the water tank, and a control valve is installed on the water outlet pipe.

[0059] Four fluorescent lamps are fixedly connected between two inner side walls of the cultivation frame, and the fluorescent lamps are evenly arranged on the inner side of the chain.

[0060] The beneficial effects of this technology are as follows: 1. By setting a water outlet structure and turning on the water pump, the water pump transports the water in the water tank to the rotating pipe through the water inlet pipe, and then transports the water to the water pipe through the rotating pipe, and finally sprays it on the breeding tray by the atomizing nozzle; during the rotation of the breeding tank, the driving assembly drives the rotating pipe to rotate, the rotating pipe drives the fixed frame to rotate, and the fixed frame drives the connecting rod and the blocking plate to rotate. Through the cooperation of the first gear and the second gear, the rotation process of the blocking plate and the blocking plate has a certain regularity. When the second gear rotates one circle, the fixed frame drives the blocking plate to rotate one circle, and the breeding tank rotates from this position to the position of the next breeding tank; two blocking plates are symmetrically arranged, and the arc length of the cross section is one-fourth of the circumference of the water pipe, so when the top blocking plate moves to the highest point, the blocking plate gradually rotates to release the blockage of the atomizing nozzle and spray. During the process of the blocking plate rotating from the highest point to the other side, the blocking plate gradually rotates to block the atomizing nozzle, thereby completing one water outlet, and continuing to rotate, through the cooperation of the blocking plate and the atomizing nozzle, the function of intermittent water spraying is realized.

[0061] 2. Through the cooperation of the first rotating wheel, the second rotating wheel, the first gear and the second gear, the motor is turned on, the motor drives the transmission shaft to rotate through the output shaft, the transmission shaft drives the sprocket to rotate, the sprocket drives the chain to rotate, and the chain transmission drives the sprocket at the other end to rotate, so as to realize the continuity of rotation of the whole device. During the rotation of the sprocket, the connected transmission shaft is driven to rotate, the first gear is driven to rotate through the transmission shaft, the second gear is driven to rotate through the first gear, the rotating shaft and the first rotating wheel are driven to rotate through the second gear, the transmission belt is driven to rotate through the first rotating wheel, the second rotating wheel is driven to rotate through the transmission belt, the rotating tube is driven to rotate through the second rotating wheel, and the fixed frame is driven to rotate through the rotating tube, thereby connecting the rotation of the breeding trough and the rotation of the sealing plate together, so as to form a regular rotation between the breeding trough and the sealing plate.

[0062] 3. Through the cooperation of the first screw rod and the second screw rod and by rotating the rotating block, the rotating block drives the first screw rod to rotate, the first screw rod drives the first wheel to rotate, the first wheel drives the first belt to rotate, the first belt drives the second wheel to rotate, the second wheel drives the second screw rod to rotate, the second screw rod drives the third wheel to rotate, the third wheel drives the second belt and another third wheel to rotate, the third wheel drives the connected second wheel and the second screw rod to rotate, the second wheel drives the other first wheel and the first screw rod to rotate, thereby realizing the rotation of the two first screw rods and the second screw rod, thereby realizing the up and down movement of the infiltration plate and realizing the function of adjusting the height of the breeding disk.

[0063] A corn breeding experimental box comprises a box body, a plurality of partitions are fixedly connected to the box body, a breeding basin is arranged on each partition, the front and rear inner walls of the breeding basin are elastically connected to a supporting plate, a plurality of breeding boxes are arranged in parallel on the breeding basin via two supporting plates, a connecting block is fixedly connected to the bottom of the breeding box, a folding plate is arranged inside the breeding basin, the folding plate is composed of a plurality of single plates rotatably connected via a first node and a second node, the first node is rotatably connected to the connecting block, and the second node is slidably connected to the bottom plate of the breeding basin via a slider.

[0064] A screw is rotatably connected inside the bottom plate of the breeding basin, and a pair of push blocks are symmetrically arranged on the upper surface of the bottom plate of the breeding basin. The bottoms of the two push blocks are fixedly connected with a screw sleeve, and the two screw sleeves are respectively screwed and sleeved with the threads at both ends of the screw.

[0065] A ring hook capable of hooking the second node is arranged on one side of the push block close to the second node.

[0066] The inner ring surface of the screw sleeve is provided with an internal thread portion, and both ends of the screw rod are provided with external thread portions matching the internal thread, and the thread rotation directions of the two external thread portions are opposite.

[0067] A plurality of fixed blocks are fixedly connected to the front and rear inner walls of the breeding basin and located below the supporting plate, a plurality of guide shafts are fixedly connected to the bottom of the supporting plate, and the guide shafts are movably sleeved with the fixed blocks at corresponding positions.

[0068] The outer sleeve of the guide shaft located between the supporting plate and the fixing block is provided with a spring.

[0069] The front and rear ends of the breeding box are fixedly connected with a strapping plate which can be strapped on the supporting plate.

[0070] A water receiving box is arranged inside the breeding pot and below each breeding box. A plurality of breeding openings are arranged on the upper surface of the breeding box, and a water leakage hole is arranged at the bottom of each breeding opening.

[0071] The front end of the breeding basin is provided with an opening for drawing the water receiving box out of the breeding basin, and the front end of the water receiving box is fixedly connected with an identification card slot for inserting the identification card.

[0072] The beneficial effects of this technology are as follows:

[0073] (1): By squeezing or pulling the folding plate, the spacing of all breeding boxes can be adjusted at the same time, thereby adjusting the spatial distance of seedlings, and experimenting on the effects of different spatial distances on breeding, making the breeding experimental data more accurate;

[0074] (2): The water collection box can not only collect the water leakage of a single breeding box, but also place a label through the identification card slot to mark the outside of each breeding box for easy identification by personnel.

[0075] A corn breeding device for improving germination rate comprises a breeding box, a mounting plate is provided on the breeding box, the mounting plate and the breeding box are connected by bolts; a driving motor is installed on the mounting plate, and the driving motor is connected to an angle anti-tilt assembly;

[0076] The angular anti-tilt assembly includes a driving block arranged on the output end of the driving motor, the driving block is connected to the driving square groove provided on the driving bevel gear; the driving bevel gear is meshed with the angular movable bevel gear, the angular movable bevel gear is equipped with a driving shaft, the driving shaft passes through the driving base provided on the breeding box and is connected to the cam; the cam is equipped with an angular movable shaft, the angular movable shaft is connected to the angular movable pulley, and the angular movable pulley is connected to the equal rotation parallel connection unit;

[0077] A limit rotating shaft is provided in the breeding box, on which a moving block is symmetrically installed, an electric push rod is provided between the moving block and the fluorescent lamp, and different moving blocks are fixedly installed on both ends of the limit rotating shaft, and a linkage square seat is provided on the different moving block, and the linkage square seat is connected with the moving unit, and the moving unit includes a buffer pad, and a displacement sensor is provided on the side of the buffer pad close to the breeding plate, and the displacement sensor is used to detect the displacement of the breeding plate;

[0078] By driving the motor, multiple breeding boards and fluorescent lamps are driven to rotate at the same time, so that the fluorescent lamps swing along with the rotation of the breeding boards, thereby illuminating the corn seeds in the breeding boards. At the same time, the driving motor will synchronously drive the buffer pad to clamp the shaking breeding boards, and adjust the distance between the fluorescent lamps and the breeding boards according to the displacement detected by the displacement sensor to improve the light intensity.

[0079] The equal-rotation parallel-connected unit includes an angular transmission belt arranged on the angular pulley, the angular transmission belt is connected to the driving pulley, a translation shaft is installed on the driving pulley, the translation shaft passes through a translation base provided on the breeding box and is connected to a translation bevel gear, the translation bevel gear is meshed with an auxiliary bevel gear, an auxiliary shaft is provided on the auxiliary bevel gear, the auxiliary shaft passes through an auxiliary base provided on the breeding box and is connected to the active bevel gear, and the active bevel gear is meshed with the driven bevel gear.

[0080] A driven rotating shaft is provided on the driven bevel gear, and the driven rotating shaft is transmission-connected with a plurality of driven bases provided in the breeding box; a translation circular block is installed on the driven rotating shaft, a plurality of linkage square blocks are installed on both sides of the translation circular block, a linkage square plate is provided on the linkage square block, and the two linkage square plates are connected to the linkage rotating rod together, and a linkage cross block is provided on the linkage rotating rod, a counterweight block is provided on one side of the linkage cross block, and a clamping square box is symmetrically installed on the other side, and the clamping square box is connected to the breeding plate by a clamping and unloading mechanism.

[0081] The cam is connected with the convex horizontal plate, a limited movement slider is installed on the convex horizontal plate, the limited movement slider is slidably connected with the limited movement groove provided on the driving base, a limited movement rod is fixedly installed in the limited movement groove, a limited movement spring is sleeved on the limited movement rod, one end of the limited movement spring is fixedly connected with the limited movement groove, and the other end is fixedly connected with the limited movement slider; an extension block is installed on the convex horizontal plate, the extension block is connected with the auxiliary block, and the limited block is symmetrically installed on the auxiliary block, a limit block is provided with a limit rod, the limit rod passes through the breeding box and is fixedly connected with the limit circular plate; a limit spring is sleeved on the limit rod, one end of the limit spring is fixedly connected with the limit circular plate, and the other end is fixedly connected with the breeding box.

[0082] The two limit blocks are connected to the limit rack together, the limit rack is meshed and connected to the limit gear, the limit gear is installed with a limit rotating shaft, the limit rotating shaft is connected to the limit bearing provided on the breeding box; the differential rotating block is slidably connected to the differential rotating rod, and the two ends of the differential rotating rod are fixedly connected to the limit base provided on the breeding box; the differential rotating rod is sleeved with a tension spring, one end of the tension spring is fixedly connected to the limit base, and the other end is fixedly connected to the differential rotating block; the linkage square seat is connected to the same unit of the slow direction.

[0083] The clamping and unloading mechanism includes clamping blocks arranged on both sides of the breeding plate, the clamping blocks are connected with the clamping cross plate in cooperation, the clamping cross plate is slidably connected with the clamping cross groove provided in the clamping square box, and the inner bottom surface of the clamping square box is connected with the clamping cross plate through a clamping spring; locking grooves are symmetrically arranged on the clamping blocks, the locking grooves are connected with the locking plates, the two locking plates are jointly connected with the locking cross plate, the locking cross plate is symmetrically arranged with positioning blocks, the positioning blocks are slidably connected with the positioning rod provided on the clamping square box; a positioning spring is sleeved on the positioning rod, one end of the positioning spring is connected with the positioning block, and the other end is connected with the positioning circular plate.

[0084] The slow-moving unit includes a rope arranged on a linkage square seat, the rope is connected to a winding wheel through a fixed pulley provided on a breeding box, a matching rotating shaft is installed on the winding wheel, the matching rotating shaft passes through a matching base provided on the breeding box and is connected to a clockwork spring; a plurality of matching bevel gears are installed on the matching rotating shaft, the matching bevel gears are meshedly connected to a braking bevel gear, a braking rotating shaft is installed on the braking bevel gear, the braking rotating shaft passes through a braking base provided on the breeding box and is connected to a braking gear, the braking gear is meshedly connected to two braking racks, guide blocks are symmetrically arranged on the braking racks, the guide blocks are connected to guide rods, and the guide rods are connected to a guide base provided on the braking base.

[0085] A guide spring is sleeved on the guide rod, one end of the guide spring is connected to the guide base, and the other end is connected to the guide block. A delay rod is installed on the guide block and the brake rack, and a delay rack is provided on the delay rod, and the delay rack is connected to the fan row unit; the delay rod is connected to the delay cross plate, and control rods are symmetrically provided on the delay cross plate, and the control rod is connected to the moving cross plate, and a buffer pad is provided on the moving cross plate; a delay spring is sleeved on the control rod, one end of the delay spring is connected to the moving cross plate, and the other end is connected to the delay cross plate.

[0086] The fan row unit includes a delay gear meshed with the delay rack, and the delay gear is installed with a delay shaft, one end of the delay shaft is connected to the breeding box for transmission, and the other end is connected to the coupling circular plate, and the coupling circular plate is provided with a coupling rod, and the coupling rod is connected to the torque groove provided on the torque box, and the torque box is symmetrically provided with torque rods, and the torque rod passes through the torque base provided on the breeding box and is connected to the torque circular plate, and a torque spring is sleeved on the torque rod, and one end of the torque spring is connected to the torque base, and the other end is connected to the torque circular plate. The moving circular plate is connected to the driven inclined block, the driven inclined block is connected to the active inclined block, the active inclined block is connected to the pushing block, the two sides of the pushing block are connected to the pushing rods provided on the breeding box, a reciprocating spring is sleeved on the pushing rod, one end of the reciprocating spring is connected to the breeding box, and the other end is connected to the pushing block, the pushing block is connected to the pushing box provided on the breeding box, and several ventilation ports are provided on the pushing box; a slow control groove is provided on the breeding box, the slow control groove is connected to the pushing box, an electromagnetic valve is provided in the ventilation port, and a water replenishment unit is provided in the pushing box.

[0087] The beneficial effects of this technology are:

[0088] 1. The driving motor is set to make the even-rotating parallel unit and the angular anti-tilting assembly move synchronously, so that the fluorescent lamp reciprocates to evenly illuminate the breeding plate rotating at the top. Since the even-rotating parallel unit and the angular anti-tilting assembly share a common power source, the movement speeds of the two components are relatively consistent, so that the light intensity irradiated by the fluorescent lamp on the breeding plate is also consistent, avoiding the influence of different irradiation time and light intensity (light intensity) on the breeding plate on corn germination, thereby improving the germination rate of corn, thereby avoiding the influence on the germination rate and ensuring the accuracy of the breeding germination rate.

[0089] 2. When the driving motor drives the equal-rotation parallel-connection unit and the angle anti-tilt assembly to work, the limit rotating shaft will drive the movable rotating block to rotate, and the winding wheel will rotate through the cooperation of the rope and the fixed pulley, so that the brake gear will mesh with the two brake racks and move toward each other. When the two movable horizontal plates move toward each other, the buffer pads provided on the movable horizontal plates will contact the two sides of the breeding plate rotated to the highest point, offsetting the impact force caused by the shaking of the breeding plate, avoiding the shaking of the breeding plate at the highest point, resulting in different light exposure time and intensity for several corn seeds, and at the same time ensuring that the breeding plate can receive light in the center of the fluorescent lamp to avoid the position of the breeding plate from shifting.

[0090] 3. When the driving motor drives the parallel-rotating unit and the angular anti-flip assembly to work, the driven rotating shaft will cause the translational circular block to start rotating when it rotates, so that it can drive the breeding plates on the linkage horizontal blocks to move through the cooperation of several linkage blocks and linkage square plates. Since the linkage horizontal block is equipped with a counterweight block, when the translational circular block rotates, the linkage horizontal block also rotates within the linkage rotating rod under the action of gravity, so that the breeding plate opening provided on the linkage horizontal block can always face upward. By adjusting the position of the breeding plate itself and cooperating with the rotating daylight lamp, the light intensity and time of the corns on several breeding plates are the same under the premise of breeding corns in batches, thereby improving the germination rate of corns, reducing the limitations of the device during use, and improving the working efficiency of breeding. At the same time, it can provide a large amount of experimental data and improve the accuracy of the germination rate results.

[0091] Reference Figures 1 to 6 The present invention discloses a screening device for corn salt-alkali tolerance breeding, comprising:

[0092] The cultivation box 1 has a soil outlet 4 and a plurality of seedling outlets 3 on its side wall, and the plurality of seedling outlets 3 are arranged at equal intervals in the circumferential direction;

[0093] The breeding part is fixed in the cultivation box 1, the soil outlet 4 is located above the breeding part, the bottom wall of the soil outlet 4 is flush with the top surface of the breeding part, the seedling outlet 3 is located below the breeding part, and the breeding part is detachably connected with a plurality of cultivation cups 23;

[0094] A plurality of harvesting mechanisms are arranged in the cultivation box 1 and below the breeding part. The plurality of harvesting mechanisms are arranged one by one corresponding to the plurality of breeding cups 23. The movable ends of the harvesting mechanisms extend into the breeding cups 23. After the cultivation is completed, seedlings appear in the breeding cups 23. The harvesting mechanisms take the breeding cups 23 out from below the breeding part. If no seedlings appear in the breeding cups 23, the harvesting mechanisms push the planting soil in the breeding cups 23 out of the breeding cups 23 to the top surface of the breeding part.

[0095] The cleaning mechanism is arranged above the breeding part, and the movable end of the cleaning mechanism is in sliding contact with the top surface of the breeding part, and the movable end of the cleaning mechanism is arranged corresponding to the unearthing opening 4.

[0096] In the present invention, different varieties of corn seeds are planted in the cultivation cups 23 in the breeding section, and the cultivation cups 23 are filled with soil with the same salinity and alkali degree. The seedling raising conditions of the corn seeds are monitored by manual observation / camera. After a set time (after the seedling raising is completed), the harvesting mechanism takes out the cultivation cups 23 that have successfully cultivated seedlings from the bottom of the breeding section, and pushes the planting soil in the cultivation cups 23 that have not cultivated seedlings to the top of the breeding section. The planting soil is cleaned out of the cultivation box 1 from the soil outlet 4 by the cleaning mechanism, and then the cultivation cups 23 are taken out from the bottom of the breeding section, and then all the cultivation cups 23 are taken out of the cultivation box 1 from the seedling outlet 3 manually to complete the breeding;

[0097] In the present invention, the taking out of planting soil and seedlings can be achieved through the harvesting mechanism, and manual operation by staff is not required, which is simple, fast and has a small workload.

[0098] In one alternative, the breeding department includes:

[0099] The cultivation body 5 is fixedly connected in the cultivation box 1. The cultivation body 5 is located in the middle of the cultivation box 1. The bottom wall of the soil outlet 4 is flush with the top surface of the cultivation body 5.

[0100] A plurality of placement grooves 21 are arranged in an array on the cultivation body 5, the placement grooves 21 vertically penetrate the cultivation body 5, and the cultivation cups 23 are slidably connected in the placement grooves 21;

[0101] The retaining ring 22 is fixedly connected to the top of the inner wall of the placement groove 21. The top of the retaining ring 22 is flush with the top surface of the cultivation body 5. The thickness of the retaining ring 22 is equal to the thickness of the side wall of the cultivation cup 23. The top of the cultivation cup 23 abuts against the retaining ring 22.

[0102] The support plate 19 is detachably connected to the inner wall of the incubator 1 , and the top surface of the support plate 19 abuts against the bottom end of the incubation cup 23 .

[0103] In one alternative, the harvesting mechanism comprises:

[0104] The telescopic rod 2 is vertically fixed to the inner bottom wall of the incubator 1;

[0105] The push plate 25 is vertically slidably connected in the cultivation cup 23;

[0106] The sleeve 24 is coaxially fixed to the bottom end of the push plate 25 . The bottom end of the sleeve 24 passes through the culture cup 23 and the support plate 19 and is detachably connected to the movable end of the telescopic rod 2 .

[0107] A plurality of avoidance holes 20 are formed on the support plate 19 , and the avoidance holes 20 and the sleeves 24 are arranged in a one-to-one correspondence.

[0108] In one optional solution, the cleaning mechanism includes:

[0109] The first motor 7 is fixedly connected to the outer wall of the incubator 1;

[0110] The threaded rod 36 is horizontally rotatably connected in the incubator 1;

[0111] A threaded block 8, threadedly connected to the outer side of the threaded rod 36;

[0112] The push plate 9 is fixedly connected to the bottom end of the threaded block 8 , and the push plate 9 is in sliding contact with the top surface of the cultivation body 5 , and the push plate 9 is arranged corresponding to the unearthing port 4 .

[0113] In an optional solution, a horizontal spray plate 10 is arranged above the cultivation body 5, and a slide groove 11 is opened on the spray plate 10. The threaded block 8 is slidably connected in the slide groove 11. A water passage cavity 12 is opened in the spray plate 10, and a plurality of spray holes 13 are opened on the bottom surface of the spray plate 10. The plurality of spray holes 13 are distributed in an array and are all connected to the water passage cavity 12. The water passage cavity 12 is connected through a hose. The end of the hose away from the spray plate 10 penetrates into the water tank 6 and is connected to the water outlet end of the water pump. The water tank 6 is fixedly connected to the top of the cultivation box 1.

[0114] In an optional solution, an air inlet 14 is provided on one side of the cultivation box 1, and the air inlet 14 is located above the cultivation body 5. A second motor 16 is fixedly connected to the air inlet 14 through a support frame 15, and a plurality of fan blades 17 are fixedly connected to the output shaft of the second motor 16 at equal intervals in the circumferential direction.

[0115] The air inlet 14 is arranged correspondingly and matched with the push plate 9 .

[0116] In an optional solution, a second mounting groove 33 is provided on the outer wall of the sleeve 24, the axis of the second mounting groove 33 is horizontally arranged, a limiting hole 34 is coaxially provided at the bottom of the second mounting groove 33, the limiting hole 34 passes through the sleeve 24, a baffle 35 is slidably connected in the second mounting groove 33, a top pin 31 is fixed on the baffle 35, one end of the top pin 31 is slidably connected in the limiting hole 34, the other end of the top pin 31 passes through the second mounting groove 33, a second spring 32 is provided in the second mounting groove 33, and the two ends of the second spring 32 are respectively fixed to the baffle 35 and the bottom of the second mounting groove 33;

[0117] A first mounting groove 28 is provided at the movable end of the telescopic rod 2, and a limit pin 30 is slidably connected in the first mounting groove 28. The limit pin 30 is adapted to and correspondingly arranged with the limit hole 34. A first spring 29 is arranged in the first mounting groove 28, and the two ends of the first spring 29 are respectively fixedly connected to the limit pin 30 and the bottom of the first mounting groove 28.

[0118] The outer side and the inner side of the bottom end of the sleeve 24 are both chamfered. When the sleeve 24 is connected to the telescopic end of the telescopic rod 2, the telescopic rod 2 extends into the sleeve 24, and the limit pin 30 first abuts against the chamfer, and the limit pin 30 shrinks into the first installation groove 28. The telescopic rod 2 continues to rise, and then the limit pin 30 falls into the limit hole 34, and the connection is completed;

[0119] During disassembly, the ejector pin 31 is squeezed, and the ejector pin 31 pushes the limiting pin 30 out of the limiting hole 34 , and at this time, the sleeve 24 can be separated from the telescopic end of the telescopic rod 2 .

[0120] In an optional solution, a first magnetic ring 26 is circumferentially fixed to the inner bottom wall of the cultivation cup 23 , the first magnetic ring 26 is magnetically connected to a second magnetic ring 27 , and the second magnetic ring 27 is circumferentially fixed to the bottom wall of the push plate 25 .

[0121] The first magnetic ring 26 and the second magnetic ring 27 are magnetically connected to temporarily fix the cultivation cup 23 and the push plate 25, and then temporarily fix the cultivation cup 23 and the telescopic end of the telescopic rod 2, to avoid that when the telescopic end of the telescopic rod 2 rises, only the push plate 25 is driven up to push out the planting soil.

[0122] Usage process: put the cultivation cup 23 pre-loaded with planting soil and corn seeds into the cultivation box 1 through the seedling outlet 3, connect the cultivation cup 23 with the telescopic end of the telescopic rod 2, then raise the telescopic end of the telescopic rod 2, put the cultivation cup 23 into the placement groove 21 in the cultivation body 5, until the cultivation cup 23 abuts against the retaining ring 22, then move the support plate 19 upward, fix the support plate 19 with the pin 18, and at this time the support plate 19 abuts against the bottom end of the cultivation cup 23;

[0123] During the cultivation process, in order to realize ventilation in the cultivation box 1, the fan blades 17 are driven to rotate by the second motor 16 to realize air exchange (ventilation) between the cultivation box 1 and the external environment, and the threaded rod 36 is driven to rotate by the first motor 7, and the threaded rod 36 drives the push plate 9 to move through the threaded block 8 to adjust the distance between the push plate 9 and the air inlet 14, thereby adjusting the wind speed;

[0124] The water pump in the water tank 6 supplies water to the water chamber 12, and the water is sprayed into the cultivation cup 23 through the spray hole 13, thereby providing sufficient moisture for the development of the corn seeds;

[0125] After the set time (after the seedlings are raised), observe the emergence of the corn seeds. It can be observed manually or through monitoring equipment such as cameras. First, remove the support plate 19, then lower the telescopic rod 2, and take out the cultivation cups 23 that have successfully cultivated seedlings from the bottom of the breeding part, and push the planting soil in the cultivation cups 23 that have not cultivated seedlings to the top of the breeding part. The threaded rod 36 is driven to rotate by the first motor 7, and the threaded rod 36 drives the push plate 9 to move through the threaded block 8 to clean the planting soil out of the cultivation box 1 from the soil outlet 4, and then take out the cultivation cups 23 from the bottom of the breeding part, and then manually take all the cultivation cups 23 out of the cultivation box 1 from the seedling outlet 3 to complete the breeding.

[0126] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0127] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A screening device for corn salt-alkali tolerance breeding, characterized in that: include: A cultivation box (1) has a soil outlet (4) and a plurality of seedling outlets (3) on its side wall, wherein the plurality of seedling outlets (3) are arranged at equal intervals in the circumferential direction; A breeding section is fixedly connected in the cultivation box (1), the soil outlet (4) is located above the breeding section, the bottom wall of the soil outlet (4) is flush with the top surface of the breeding section, the seedling outlet (3) is located below the breeding section, and the breeding section is detachably connected with a plurality of cultivation cups (23); A plurality of harvesting mechanisms are arranged in the cultivation box (1) and below the breeding section. The plurality of harvesting mechanisms are arranged in one-to-one correspondence with the plurality of breeding cups (23). The movable ends of the harvesting mechanisms extend into the breeding cups (23). After the cultivation is completed, seedlings appear in the breeding cups (23). The harvesting mechanisms take the breeding cups (23) out from below the breeding section. If no seedlings appear in the breeding cups (23), the harvesting mechanisms push the planting soil in the breeding cups (23) out of the breeding cups (23) to the top surface of the breeding section. A cleaning mechanism is arranged above the breeding section, the movable end of the cleaning mechanism is in sliding contact with the top surface of the breeding section, and the movable end of the cleaning mechanism is arranged corresponding to the soil discharge port (4).

2. A screening device for corn salt-alkali tolerance breeding according to claim 1, characterized in that: The breeding department includes: A cultivation body (5) is fixedly connected in the cultivation box (1), the cultivation body (5) is located in the middle of the cultivation box (1), and the bottom wall of the soil outlet (4) is flush with the top surface of the cultivation body (5); A plurality of placement grooves (21) are arranged in an array on the cultivation body (5), the placement grooves (21) vertically penetrate the cultivation body (5), and the cultivation cups (23) are slidably connected in the placement grooves (21); A retaining ring (22) is fixedly connected to the top of the inner wall of the placement groove (21), the top of the retaining ring (22) is flush with the top surface of the cultivation body (5), the thickness of the retaining ring (22) is equal to the thickness of the side wall of the cultivation cup (23), and the top of the cultivation cup (23) is in contact with the retaining ring (22); The support plate (19) is detachably connected to the inner wall of the cultivation box (1), and the top surface of the support plate (19) abuts against the bottom end of the cultivation cup (23).

3. A screening device for corn salt-alkali tolerance breeding according to claim 2, characterized in that: The harvesting mechanism comprises: A telescopic rod (2) is vertically fixed to the inner bottom wall of the incubator (1); A push plate (25) vertically slidably connected in the cultivation cup (23); The sleeve (24) is coaxially fixed to the bottom end of the push plate (25); the bottom end of the sleeve (24) passes through the culture cup (23) and the support plate (19) and is detachably connected to the movable end of the telescopic rod (2).

4. A screening device for corn salt-alkali tolerance breeding according to claim 3, characterized in that: The cleaning mechanism comprises: A first motor (7) is fixedly connected to the outer side wall of the incubator (1); A threaded rod (36) is horizontally rotatably connected in the incubator (1); A threaded block (8) threadedly connected to the outer side of the threaded rod (36); A push plate (9) is fixedly connected to the bottom end of the threaded block (8), the push plate (9) is in sliding contact with the top surface of the cultivation body (5), and the push plate (9) is arranged corresponding to the soil discharge port (4).

5. The screening device for corn salt-alkali tolerance breeding according to claim 4, characterized in that: A horizontal spray plate (10) is arranged above the cultivation body (5), a slide groove (11) is provided on the spray plate (10), the threaded block (8) is slidably connected in the slide groove (11), a water passage cavity (12) is provided in the spray plate (10), a plurality of spray holes (13) are provided on the bottom surface of the spray plate (10), the plurality of spray holes (13) are distributed in an array and are all connected to the water passage cavity (12), the water passage cavity (12) is connected through a connecting hose, one end of the connecting hose away from the spray plate (10) penetrates into a water tank (6) and is connected to a water outlet end of a water pump, and the water tank (6) is fixedly connected to the top of the cultivation box (1).

6. The screening device for corn salt-alkali tolerance breeding according to claim 4, characterized in that: An air inlet (14) is provided on one side of the cultivation box (1), and the air inlet (14) is located above the cultivation body (5). A second motor (16) is fixedly connected to the air inlet (14) via a support frame (15), and a plurality of fan blades (17) are fixedly connected to the output shaft of the second motor (16) at equal intervals in the circumferential direction. The air inlet (14) is arranged correspondingly and matched with the push plate (9).

7. The screening device for corn salt-alkali tolerance breeding according to claim 3, characterized in that: A second mounting groove (33) is provided on the outer wall of the sleeve (24), the axis of the second mounting groove (33) is arranged horizontally, a limiting hole (34) is coaxially provided at the bottom of the second mounting groove (33), the limiting hole (34) passes through the sleeve (24), a baffle (35) is slidably connected in the second mounting groove (33), a push pin (31) is fixedly connected to the baffle (35), one end of the push pin (31) is slidably connected in the limiting hole (34), and the other end of the push pin (31) passes through the second mounting groove (33), a second spring (32) is provided in the second mounting groove (33), and two ends of the second spring (32) are respectively fixedly connected to the baffle (35) and the bottom of the second mounting groove (33); The movable end of the telescopic rod (2) is provided with a first mounting groove (28), a limit pin (30) is slidably connected in the first mounting groove (28), the limit pin (30) is adapted to and correspondingly arranged with the limit hole (34), a first spring (29) is arranged in the first mounting groove (28), and two ends of the first spring (29) are respectively fixedly connected to the limit pin (30) and the groove bottom of the first mounting groove (28).

8. The screening device for corn salt-alkali tolerance breeding according to claim 3, characterized in that: A first magnetic ring (26) is circumferentially fixed to the inner bottom wall of the cultivation cup (23); the first magnetic ring (26) is magnetically connected to a second magnetic ring (27); and the second magnetic ring (27) is circumferentially fixed to the bottom wall of the push plate (25).

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