An adjustable agricultural planting seeding device

Abstract

The application discloses an adjustable seeding device for agricultural planting and relates to the technical field of agricultural planting and seeding, which comprises a moving mechanism, a fertilizer conveying mechanism arranged on the lower side of the moving mechanism and used for conveying fertilizer, a stubble cleaning mechanism arranged on one side of the fertilizer conveying mechanism and used for cleaning stubble, and a first soil covering mechanism arranged on one side of the stubble cleaning mechanism and used for covering soil on the fertilizer. The first motor drives the fourth straight gear to rotate, indirectly controls the rotating of the adjusting disc, controls the adjusting hole to be communicated with the small seed suction hole and the large seed suction hole, respectively, and makes the inside of the small seed suction hole and the large seed suction hole generate suction, respectively, so that the small seeds and the large seeds are correspondingly adsorbed, the adsorption force of the small seed suction hole is effectively prevented from being insufficient to effectively adsorb the large seeds, the phenomenon that the seeds are discharged is effectively prevented from occurring, and the effect that the seed discharge accuracy is high is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural planting and seeding, in particular to a seeding device for agricultural planting. BACKGROUND

[0002] Agricultural planting is an important part of agricultural production, covering the cultivation and management of various crops such as food, economy, vegetables and gardening, which not only provides food and industrial raw materials for human beings, but also has an important influence on rural economy and ecological environment. Agricultural planting includes a series of links such as seed selection, land preparation, fertilization, seeding, irrigation, pest control, harvesting, etc., and each link needs scientific methods and careful management.

[0003] With the development of science and technology, the seeds are usually seeded automatically by using a seeding machine. The seeding machine is a mechanical device used in agricultural production, which can uniformly spread seeds into the land. It takes seeds out of the seed storage box through a mechanical transmission device, and then seeds are planted into the soil according to the predetermined depth and spacing through the seeding mechanism.

[0004] Among them, the seed dispensing method of the seeding machine usually generates negative pressure by a high-speed fan to adsorb seeds on the seed suction holes of the seed dispensing disc or the roller. When the seed dispensing disc or the roller rotates, the seeds are carried to the designated seeding position, and then fall into the seeding trench opened by the furrow opener under the action of gravity or the seed scraper.

[0005] In the process of air suction seed dispensing, since the sizes of different types of seeds are different, the existing seed suction holes cannot freely adjust the size of the seed suction hole according to the size of the seed. When a large seed suction hole adsorbs a small seed, the small seed is easily sucked into the pump body. When a small seed suction hole adsorbs a large seed, due to the small adsorption area, the adsorption force is not enough, and the large seed cannot be effectively adsorbed, resulting in the phenomenon of missing seed dispensing, which reduces the accuracy of seed dispensing.

[0006] Therefore, it is necessary to design a seeding device for agricultural planting with adjustable seed suction hole size and high seed dispensing accuracy. SUMMARY

[0007] The purpose of the present application is to provide a seeding device for agricultural planting, which can solve the problems in the background art.

[0008] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of adjustable agricultural planting seeding device, including moving mechanism, the lower side of the moving mechanism is equipped with fertilizer conveying mechanism for conveying fertilizer, the side of the fertilizer conveying mechanism is equipped with stubble cleaning mechanism for cleaning stubble, the side of the stubble cleaning mechanism is equipped with first soil covering mechanism for soil covering fertilizer, the side of the first soil covering mechanism is equipped with second soil covering mechanism for soil covering seed, the upper side of the moving mechanism is equipped with fertilizer tank for storing fertilizer, the side of the fertilizer tank is equipped with storage mechanism for storing seed, the lower side of the storage mechanism is equipped with two seed metering mechanisms for discharging different size seeds.

[0009] According to the above technical scheme, the moving mechanism includes a first support plate fixedly connected to the lower side of the fertilizer tank, the first support plate is fixedly connected with two support frames on one side, each support frame is provided with a positioning plate on one side and the positioning plate is fixedly connected with the first support plate, two first connecting rods are hingedly connected to the lower side of each positioning plate, and a connecting shaft is fixedly connected to the other end of each first connecting rod.

[0010] According to the above technical scheme, the fertilizer conveying mechanism includes a connecting frame fixedly connected to the lower side of the first support plate, a first furrow opener is fixedly connected to the lower side of the connecting frame, a flow regulating valve is fixedly connected to the output end of the fertilizer tank, a material conveying pipe is fixedly connected to the output end of the flow regulating valve, and the other end of the material conveying pipe extends into the first furrow opener.

[0011] According to the above technical scheme, the stubble cleaning mechanism includes two L-shaped rods fixedly connected to the lower side of the first support plate, a blocking disc is rotatably connected to the middle of the two L-shaped rods, a second connecting rod is fixedly connected to one side of each L-shaped rod, a fixed rod is fixedly connected to the middle of the two second connecting rods, and a stubble cleaning wheel is rotatably connected to the other end of each second connecting rod.

[0012] According to the above technical scheme, the first soil covering mechanism and the second soil covering mechanism are the same structure, the first soil covering mechanism includes two connecting plates fixedly connected to the outer side of the fixed rod, and a pressing wheel is rotatably connected to one side of each connecting plate.

[0013] According to the above technical scheme, the middle of the two support frames is fixedly connected with a transmission box, three second spur gears are rotatably connected in the transmission box and the three second spur gears are meshingly connected with each other, a first spur gear is meshingly connected to the upper side of the uppermost second spur gear and the two ends of the first spur gear penetrate the transmission box, and a third spur gear is meshingly connected to the lower side of the lowermost second spur gear and the third spur gear is fixedly connected with the connecting shaft.

[0014] According to the technical scheme, the storage mechanism comprises two second supporting plates fixedly connected to the upper side of the supporting frame, the upper side of each of the two second supporting plates is fixedly connected with a seed storage box, the lower side of the supporting frame is fixedly connected with a second furrow opener, the inside of each second furrow opener is provided with a second seed conveying pipe, and the other end of the second seed conveying pipe penetrates through the supporting frame.

[0015] According to the technical scheme, the seed sowing mechanism comprises a seed sowing shell fixedly connected to the upper side of the supporting frame, the upper side of the seed sowing shell is fixedly connected with an air pump, the input end of the air pump penetrates through the seed sowing shell, the upper side of the seed sowing shell is fixedly connected with a first seed conveying pipe, the upper side of the first seed conveying pipe is fixedly connected with a first electromagnetic valve, and the first electromagnetic valve is fixedly connected with the input end of the seed storage box.

[0016] According to the technical scheme, the inside of the seed sowing shell is provided with an adjusting assembly, one side of the adjusting assembly is provided with a material pushing assembly, the other side of the adjusting assembly is provided with a stirring assembly, the upper side of the stirring assembly is provided with a cleaning assembly for blowing away the blocked seed coat and seeds, and the other side of the seed sowing shell is further provided with a discharging assembly for discharging different sizes of seeds.

[0017] According to the technical scheme, the adjusting assembly comprises a first transmission shaft rotatably connected to the inside of the seed sowing shell, the outer side of the first transmission shaft is fixedly connected with a discharging disc, the discharging disc is slidably connected with the seed sowing shell, the discharging disc divides the inside of the seed sowing shell into a negative pressure chamber and a discharging chamber, the outer side of the first transmission shaft is fixedly connected with a connecting block, the other end of the connecting block is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a fourth spur gear, the outer side of the fourth spur gear is meshingly connected with an adjusting disc, the adjusting disc is slidably connected with the discharging disc, the inside of the adjusting disc is uniformly provided with a plurality of adjusting holes, the inside of the discharging disc is uniformly provided with a plurality of large seed suction holes, and one small seed suction hole is arranged between every two large seed suction holes.

[0018] According to the technical scheme, the stirring assembly comprises a second helical gear fixedly connected to one end of the first transmission shaft, the other end of the first transmission shaft is fixedly connected with one end of a first spur gear, one side of the second helical gear is meshingly connected with a first helical gear, the middle of the first helical gear penetrates through a stirring shaft, and the lower side of the stirring shaft is fixedly connected with an arc-shaped rotating block.

[0019] According to the technical scheme, the cleaning assembly comprises two guide sliding arc pieces fixedly connected to the inner wall of the seed sowing shell, a circular sliding block is slidably connected between the two guide sliding arc pieces, the output end of the circular sliding block is fixedly connected with a blowing pipe, the input end of the circular sliding block is fixedly connected with an air inlet pipe, the other end of the air inlet pipe is fixedly connected with a second electromagnetic valve, the second electromagnetic valve is fixedly connected to the inside of the output end of the second spur gear, the outer side of the circular sliding block is fixedly connected with a connecting rod, and the other end of the connecting rod is hingedly connected with a rhombus-shaped sliding block.

[0020] According to the above technical scheme, the upper side of the stirring shaft is provided with a guide sliding groove, the guide sliding groove is composed of two mutually intersecting spiral grooves, the upper end and the lower end of the two spiral grooves are communicated by semicircular arc grooves, and the rhombic sliding block is in sliding connection with the guide sliding groove.

[0021] According to the above technical scheme, the discharging assembly comprises a discharging box connected through the inside of the seed sowing shell, the lower side of the discharging box is fixedly connected with the second seed conveying pipe, one side of the discharging box is fixedly connected with a second motor, the output end of the second motor penetrates through the discharging box and is fixedly connected with a second transmission shaft, the outer side of the second transmission shaft is uniformly fixedly connected with four pressure sensors, and the inner wall of the discharging box is fixedly connected with a baffle, and the baffle is in sliding connection with each pressure sensor.

[0022] According to the above technical scheme, the top-up assembly comprises a fixed plate fixedly connected to the inner wall of the seed sowing shell, a guide sliding column fixedly connected to one side of the fixed plate, a spring fixedly connected to the inside of the guide sliding column, and a jacking column fixedly connected to the other end of the spring, wherein the jacking column is in sliding connection with the guide sliding column.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] 1. The first motor drives the fourth spur gear to rotate, indirectly controls the adjusting disc to rotate, thereby controls the adjusting hole to be in communication with the small seed suction hole and the large seed suction hole respectively, and then the internal parts of the small seed suction hole and the large seed suction hole generate suction respectively, so as to correspondingly adsorb the small seeds and the large seeds, effectively prevent the small seed suction hole from not being able to effectively adsorb the large seeds due to insufficient adsorption force, thereby causing the seed sowing to be missed, and achieve high accuracy of seed sowing.

[0025] 2. The first transmission shaft drives the discharging disc to rotate to discharge seeds, which not only drives the arc-shaped rotating block to rotate to stir the seeds in the arc-shaped area to the adsorption area, so that the seeds are more easily adsorbed, but also drives the rhombic sliding block to slide along the guide sliding groove, so that the circular sliding block moves up and down, and in the interval of the circular sliding block moving up and down, the air pipe jumps over each adsorbed small seed to prevent the adsorbed small seed from being blown away from the surface of the small seed suction hole, and the air pipe blows air to each unadsorbed large seed suction hole in turn, so as to blow out the small seeds and seed coats blocked in each large seed suction hole, effectively prevent the large seed suction hole from being blocked, and when adsorption is performed again, the phenomenon that the large seeds cannot be adsorbed due to insufficient adsorption force occurs, achieve high accuracy of seed sowing, and the spring drives the guide sliding column to move adaptively, so as to automatically push the seeds blocked in the large seed suction hole or the small seed suction hole to the inside of the discharging box, effectively prevent the seed sowing from being missed.

[0026] 3、Through the pressure sensor detects different size seed falls down, to the pressure value generated thereby, thereby judges the size of the seed, and then controls the second motor output end to rotate, transmits and sows multiple small seeds or single large seeds, effectively prevents the phenomenon that the sowing density of small seeds is small due to the multiple sowing according to the size of the seed during sowing, and achieves the effect of high land utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are included to provide a further understanding of the application, and are made a part of the specification and are used to explain the application, and do not constitute a limitation on the application. In the drawings:

[0028] Figure 1 It is the overall structure schematic diagram of the adjustable agricultural planting seeding device of the application;

[0029] Figure 2 It is the structure schematic diagram of the moving mechanism in the application;

[0030] Figure 3 It is the structure schematic diagram of the fertilizer conveying mechanism in the application;

[0031] Figure 4 It is the structure schematic diagram of the stubble cleaning mechanism in the application;

[0032] Figure 5 It is the structure schematic diagram of the first covering mechanism in the application;

[0033] Figure 6 It is the structure schematic diagram of the transmission box inside in the application;

[0034] Figure 7 It is the position distribution diagram of the seed metering mechanism and the storage mechanism in the application;

[0035] Figure 8 It is the structure schematic diagram of the seed metering mechanism in the application;

[0036] Figure 9 It is the local sectional view of the seed metering mechanism in the application;

[0037] Figure 10 It is the structure schematic diagram of the adjusting assembly in the application;

[0038] Figure 11 It is the structure schematic diagram of the stirring assembly and the cleaning assembly in the application;

[0039] Figure 12 It is the structure schematic diagram of the guide sliding arc piece inside in the application;

[0040] Figure 13 It is the state change schematic diagram of the stirring shaft guide sliding chute when rotating in the application;

[0041] Figure 14 Figure is the structural schematic diagram of the top material assembly in the application;

[0042] Figure 15 Figure is the structural schematic diagram of the bottom material assembly in the application;

[0043] In the figure: 1, moving mechanism; 11, first support plate; 12, positioning plate; 13, first connecting rod; 14, transmission wheel; 15, connecting shaft; 16, support frame;

[0044] 2, fertilizer box;

[0045] 3, fertilizer conveying mechanism; 31, connecting frame; 32, flow regulating valve; 33, conveying pipe; 34, first furrow opener;

[0046] 4, stubble cleaning mechanism; 41, L-shaped rod; 42, fixed rod; 43, baffle disc; 44, second connecting rod; 45, stubble cleaning wheel;

[0047] 5, first covering mechanism; 51, connecting plate; 52, press wheel;

[0048] 6, storage mechanism; 61, seed storage box; 62, second support plate; 63, second seed conveying pipe; 64, second furrow opener;

[0049] 7, seed dispensing mechanism; 71, seed dispensing shell; 72, air pump; 73, first electromagnetic valve; 74, first seed conveying pipe; 75, adjusting assembly; 751, material dispensing disc; 752, adjusting disc; 753, adjusting hole; 754, fourth spur gear; 755, first motor; 756, connecting block; 757, first transmission shaft; 758, small seed suction hole; 759, large seed suction hole; 76, stirring assembly; 761, arc-shaped rotating block; 762, first helical gear; 763, second helical gear; 764, stirring shaft; 7641, semicircular arc groove; 7642, helical groove; 77, bottom material assembly; 771, bottom material box; 772, second motor; 773, second transmission shaft; 774, pressure sensor; 775, baffle; 78, top material assembly; 781, fixed plate; 782, guide slide column; 783, top column; 784, spring; 79, cleaning assembly; 791, guide slide arc piece; 792, air inlet pipe; 793, second electromagnetic valve; 794, air blowing pipe; 795, circular slide block; 796, connecting rod; 797, rhombus slide block;

[0050] 8, second covering mechanism;

[0051] 91, first spur gear; 92, second spur gear; 93, third spur gear; 94, transmission box; 95, pressure button. DETAILED DESCRIPTION

[0052] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of the present application.

[0053] Embodiment one, please refer to Figures 1-15 The present application provides a technical scheme: an adjustable seeding device for agricultural planting, comprising a moving mechanism 1, the lower side of the moving mechanism 1 is provided with a fertilizer conveying mechanism 3 for conveying fertilizer, one side of the fertilizer conveying mechanism 3 is provided with a stubble cleaning mechanism 4 for cleaning stubble, one side of the stubble cleaning mechanism 4 is provided with a first soil covering mechanism 5 for covering fertilizer, one side of the first soil covering mechanism 5 is provided with a second soil covering mechanism 8 for covering seeds, the upper side of the moving mechanism 1 is provided with a fertilizer tank 2 for storing fertilizer, one side of the fertilizer tank 2 is provided with a storage mechanism 6 for storing seeds, and the lower side of the storage mechanism 6 is provided with two seed metering mechanisms 7 for metering different sizes of seeds.

[0054] Please refer to Figure 2 The moving mechanism 1 comprises a first support plate 11 fixedly connected to the lower side of the fertilizer tank 2, two support frames 16 fixedly connected to one side of the first support plate 11, a positioning plate 12 provided on one side of each support frame 16 and fixedly connected to the first support plate 11, two first connecting rods 13 hingedly connected to the lower side of each positioning plate 12, a connecting shaft 15 fixedly connected to the other end of each first connecting rod 13, and a transmission wheel 14 rotatably connected to the two ends of the connecting shaft 15.

[0055] Specifically, when the carrier moves the moving mechanism 1, the transmission wheel 14 is driven to rotate.

[0056] Please refer to Figure 3 The fertilizer conveying mechanism 3 comprises a connecting frame 31 fixedly connected to the lower side of the first support plate 11, a first furrow opener 34 fixedly connected to the lower side of the connecting frame 31, a flow regulating valve 32 fixedly connected to the output end of the fertilizer tank 2, a fertilizer conveying pipe 33 fixedly connected to the output end of the flow regulating valve 32, and the other end of the fertilizer conveying pipe 33 extending into the interior of the first furrow opener 34.

[0057] Specifically, when fertilizing, the first furrow opener 34 first opens a furrow, and the fertilizer in the interior of the fertilizer tank 2 falls into the furrow through the flow regulating valve 32 and the fertilizer conveying pipe 33, and the flow regulating valve 32 is used to regulate the amount of fertilizer conveyed.

[0058] Please refer to Figure 4The stubble cleaning mechanism 4 comprises two L-shaped rods 41 fixedly connected to the lower side of the first supporting plate 11, a baffle disc 43 rotatably connected to the middle of the two L-shaped rods 41, a second connecting rod 44 fixedly connected to one side of each L-shaped rod 41, a fixed rod 42 fixedly connected to the middle of the two second connecting rods 44, and a stubble cleaning wheel 45 rotatably connected to the other end of each second connecting rod 44.

[0059] Specifically, after fertilization, the baffle disc 43 and the stubble cleaning wheel 45 are driven to rotate by friction, and the stubble cleaning wheel 45 cleans the nearby stubble while rotating, and the baffle disc 43 prevents the stubble from flying into the ditch.

[0060] Please refer to Figure 5 The first and second covering mechanisms 5 and 8 are the same in structure, and the first covering mechanism 5 comprises two connecting plates 51 fixedly connected to the outer side of the fixed rod 42, and a pressure roller 52 rotatably connected to one side of each connecting plate 51.

[0061] Specifically, after the stubble is cleaned, the pressure roller 52 is driven to rotate by friction, and the soil on both sides of the ditch is extruded to cover the soil generated by the first ditching on the fertilizer.

[0062] Please refer to Figure 6 The middle of the two supporting frames 16 is fixedly connected with a transmission box 94, the inner side of the transmission box 94 is rotatably connected with three second spur gears 92 which are meshingly connected with each other, the upper side of the uppermost second spur gear 92 is meshingly connected with a first spur gear 91 and the two ends of the first spur gear 91 penetrate the transmission box 94, and the lower side of the lowermost second spur gear 92 is meshingly connected with a third spur gear 93 which is fixedly connected with the connecting shaft 15.

[0063] Specifically, the connecting shaft 15 is driven to rotate by the rotating transmission wheel 14, and the connecting shaft 15 is driven to rotate while driving the third spur gear 93 to rotate, and the third spur gear 93 is driven to rotate while driving the three second spur gears 92 to rotate in turn, and the three second spur gears 92 are driven to rotate while driving the first spur gear 91 to rotate.

[0064] Please refer to Figure 7 The storage mechanism 6 comprises two second supporting plates 62 fixedly connected to the upper side of the supporting frame 16, a seed storage box 61 fixedly connected to the upper side of the two second supporting plates 62, and a second ditcher 64 fixedly connected to the lower side of the supporting frame 16, and the inner side of each second ditcher 64 is provided with a second seed conveying pipe 63 and the other end of the second seed conveying pipe 63 penetrates the supporting frame 16.

[0065] Specifically, the seed storage box 61 is used for storing seeds, the second ditcher 64 is used for ditching before the seeds are sown, and the second seed conveying pipe 63 is used for conveying and sowing the discharged seeds.

[0066] Please refer to Figure 8 , the seed mechanism 7 includes a seed shell 71 fixedly connected to the upper side of the support frame 16, the upper side of the seed shell 71 is fixedly connected with a gas pump 72 and the input end of the gas pump 72 penetrates the seed shell 71, the upper side of the seed shell 71 is fixedly connected with a first seed conveying pipe 74, the upper side of the first seed conveying pipe 74 is fixedly connected with a first electromagnetic valve 73, and the first electromagnetic valve 73 is fixedly connected with the input end of the seed storage box 61.

[0067] Specifically, the gas pump 72 is used to extract the gas inside the negative pressure chamber, so that a negative pressure is generated inside, and the seeds inside the seed storage box 61 will fall into the inside of the seed shell 71 after passing through the first electromagnetic valve 73 and the first seed conveying pipe 74, and the first electromagnetic valve 73 will be opened to complete the seeds inside the seed shell 71 every time half of the seeds inside the seed storage box 61 are discharged.

[0068] Please refer to Figure 9 , the inside of the seed shell 71 is provided with an adjusting assembly 75, one side of the adjusting assembly 75 is provided with a material ejection assembly 78 for ejecting large seeds or small seeds, the other side of the adjusting assembly 75 is provided with a stirring assembly 76 for stirring the seeds in the arc region to the adsorption region, the upper side of the stirring assembly 76 is provided with a cleaning assembly 79 for blowing away the blocked seed coat and seeds, and the other side of the seed shell 71 is also provided with a discharging assembly 77 for discharging seeds of different sizes.

[0069] Please refer to Figure 10 and Figure 11 , the adjusting assembly 75 includes a first transmission shaft 757 rotatably connected to the inside of the seed shell 71, the outer side of the first transmission shaft 757 is fixedly connected with a discharging disc 751 and the discharging disc 751 is slidingly connected with the seed shell 71, the inside of the discharging disc 751 is provided with a pressure button 95, the discharging disc 751 divides the inside of the seed shell 71 into a negative pressure chamber and a discharging chamber, the outer side of the first transmission shaft 757 is fixedly connected with a connecting block 756, the other end of the connecting block 756 is fixedly connected with a first motor 755, the output end of the first motor 755 is fixedly connected with a fourth spur gear 754, the outer side of the fourth spur gear 754 is meshingly connected with an adjusting disc 752 and the adjusting disc 752 is slidingly connected with the discharging disc 751, the inside of the adjusting disc 752 is uniformly provided with a plurality of adjusting holes 753, and the inside of the discharging disc 751 is uniformly provided with a plurality of large seed suction holes 759, and one small seed suction hole 758 is arranged between every two large seed suction holes 759.

[0070] Specifically, when the first straight gear 91 rotates, the first transmission shaft 757 is driven to rotate, thereby driving the discharge disc 751 to rotate, and the first motor 755 is indirectly driven to rotate. The rotation of the output end of the first motor 755 is used to drive the fourth straight gear 754 to rotate, thereby driving the adjusting disc 752 to rotate, so as to control the adjusting hole 753 to be in communication with the small seed suction hole 758 or the large seed suction hole 759 respectively. Since the negative pressure chamber generates negative pressure, when the adjusting hole 753 is in communication with one of the small seed suction hole 758 or the large seed suction hole 759, the small seed suction hole 758 or the large seed suction hole 759 will generate suction force. While the discharge disc 751 rotates, the small seed suction hole 758 or the large seed suction hole 759 suctions the seeds below the discharge disc 751, and the seeds are driven to the upper side of the discharging assembly 77 by the rotation of the discharge disc 751.

[0071] In the initial state, the large seed suction hole 759 is in communication with the adjusting hole 753. When it is needed to suction large seeds, the air pump 72 is opened, and the negative pressure chamber generates negative pressure. At this time, the large seed suction hole 759 starts to suction large seeds. Since the small seed suction hole 758 is blocked by the discharge disc 751, it cannot generate suction force.

[0072] When it is needed to suction small seeds, the output end of the first motor 755 rotates by nine degrees. At this time, the small seed suction hole 758 is in communication with the adjusting hole 753. The air pump 72 is opened, and the negative pressure chamber generates negative pressure. At this time, the small seed suction hole 758 starts to suction small seeds. Since the large seed suction hole 759 is blocked by the discharge disc 751, it cannot generate suction force.

[0073] The fourth straight gear 754 is driven to rotate by the first motor 755, thereby indirectly controlling the adjusting disc 752 to rotate, so as to control the adjusting hole 753 to be in communication with the small seed suction hole 758 or the large seed suction hole 759 respectively, and then the small seed suction hole 758 or the large seed suction hole 759 generates suction force inside, so as to suction small seeds and large seeds respectively. This effectively prevents the small seed suction hole 758 from not being able to effectively suction large seeds due to insufficient suction force, thereby causing the phenomenon of seed discharge leakage, and achieves the effect of high seed discharge accuracy.

[0074] In the second embodiment, since the seed coat on the surface of the seed is easy to fall off, and a large amount of seed coat and small seeds will enter the inside of the large seed suction hole 759 when the large seed suction hole 759 does not need to suction, thereby causing the large seed suction hole 759 to be blocked. When the blocked large seed suction hole 759 suctions again, it cannot suction large seeds due to insufficient suction force, thereby causing the phenomenon of seed leakage. Therefore, the following structure is designed to solve the above technical problems.

[0075] Please refer to Figures 11-13The stirring assembly 76 comprises a second bevel gear 763 fixedly connected to one end of a first transmission shaft 757, the other end of the first transmission shaft 757 is fixedly connected to one end of the first spur gear 91, one side of the second bevel gear 763 is meshingly connected with a first bevel gear 762, the middle of the first bevel gear 762 is connected with a stirring shaft 764 in a penetrating mode, and the lower side of the stirring shaft 764 is fixedly connected with an arc-shaped rotating block 761.

[0076] Specifically, the first transmission shaft 757 drives the discharge disc 751 to rotate to discharge seeds, at the same time, the second bevel gear 763 is driven to rotate, the second bevel gear 763 drives the first bevel gear 762 to rotate at the same time, so as to drive the stirring shaft 764 to rotate, and further drive the arc-shaped rotating block 761 to rotate, so as to stir the seeds stacked on the arc-shaped surface to the area close to the small suction seed holes 758 or the large suction seed holes 759, and prevent the seeds away from the small suction seed holes 758 or the large suction seed holes 759 from being effectively sucked due to limited suction force after the seeds close to the small suction seed holes 758 or the large suction seed holes 759 are sucked.

[0077] The cleaning assembly 79 comprises two guide sliding arc pieces 791 fixedly connected to the inner wall of the seed discharge shell 71, a circular sliding block 795 slidingly connected to the middle of the two guide sliding arc pieces 791, a blowing pipe 794 fixedly connected to the output end of the circular sliding block 795, an air inlet pipe 792 fixedly connected to the input end of the circular sliding block 795, the other end of the air inlet pipe 792 is fixedly connected with a second electromagnetic valve 793, the second electromagnetic valve 793 is fixedly connected to the inside of the output end of the second spur gear 92, a connecting rod 796 is fixedly connected to the outer side of the circular sliding block 795, and a rhombus-shaped sliding block 797 is hingedly connected to the other end of the connecting rod 796.

[0078] Specifically, the second electromagnetic valve 793 is used for controlling the air pump 72 to blow gas into the inside of the air inlet pipe 792, so as to be sprayed from the output end of the blowing pipe 794 through the inside of the circular sliding block 795, in the initial state, the circular sliding block 795 is located above one side of the discharge disc 751, and the guide sliding arc piece 791 is used for guiding and sliding the circular sliding block 795.

[0079] The upper side of the stirring shaft 764 is provided with a guide sliding groove, the guide sliding groove is composed of two intersecting spiral grooves 7642, the upper end and the lower end of the two spiral grooves 7642 are communicated by a semicircular groove 7641, and the rhombus-shaped sliding block 797 is slidingly connected with the guide sliding groove.

[0080] Specifically, the guide sliding groove is used for guiding and sliding the rhombic sliding block 797. When the stirring shaft 764 rotates, the rhombic sliding block 797 slides upward along one of the spiral grooves 7642 because the circular sliding block 795 is limited in the sliding direction by the guide arc piece 791. The rhombic sliding block 797 is driven to rotate by different angles of the spiral groove 7642. At this time, the rhombic sliding block 797 is in an oblique upward state. Until the rhombic sliding block 797 reaches the uppermost position, the rhombic sliding block 797 enters the inside of the upper semicircular arc groove 7641. At this time, the rhombic sliding block 797 is in a horizontal state. When one of the rhombic sliding block 797 contacts the other spiral groove 7642, the rhombic sliding block 797 starts to swing and becomes an oblique downward state. The rhombic sliding block 797 slides downward along the other spiral groove 7642. Until the rhombic sliding block 797 reaches the lowermost position, the rhombic sliding block 797 enters the inside of the lower semicircular arc groove 7641. At this time, the rhombic sliding block 797 is in a horizontal state. In this way, the circular sliding block 795 is controlled to move up and down along the guide arc piece 791.

[0081] When the circular sliding block 795 is located at the center of the guide arc piece 791, the air blowing pipe 794 is aligned with the large seed suction hole 759 without suction force. By blowing air through the air blowing pipe 794, the small seeds and seed coats blocked in the large seed suction hole 759 are blown out. When the circular sliding block 795 is displaced downward from the center and returns to the center or is displaced upward from the center and returns to the center, the discharge disc 751 is simultaneously driven to rotate by eighteen degrees, so that the next large seed suction hole 759 without cleaning is aligned with the air blowing pipe 794. Thus, each large seed suction hole 759 is sequentially cleaned. Also, it is prevented that the air blowing pipe 794 blows air to the small seeds being adsorbed, blows the small seeds away from the surface of the small seed suction hole 758, and causes the phenomenon of seed missing.

[0082] When the first motor 755 rotates by nine degrees, the large seed suction hole 759 is communicated with the adjusting hole 753 at this time. The pressure button 95 is pressed by the meshing teeth of the adjusting disc 752, so that the pressure button 95 is triggered. The pressure button 95 sends a signal to the second electromagnetic valve 793, and the second electromagnetic valve 793 is closed. At this time, the air blowing pipe 794 no longer blows air, so that it is prevented that the air blowing pipe 794 blows air to the large seeds being adsorbed, blows the large seeds away from the surface of the large seed suction hole 759, and causes the phenomenon of seed missing.

[0083] Because the size of part of the seeds is just the same as that of the large seed suction hole 759 and the small seed suction hole 758, the seeds are adsorbed into the large seed suction hole 759 and the small seed suction hole 758 during adsorption, so that the large seed suction hole 759 and the small seed suction hole 758 are blocked. Please refer to Figure 14The top component 78 comprises a fixed plate 781 fixedly connected to the inner wall of the seed discharge shell 71, one side of the fixed plate 781 is fixedly connected with a guide sliding column 782, the inside of the guide sliding column 782 is fixedly connected with a spring 784, the other end of the spring 784 is fixedly connected with a top column 783, and the top column 783 is slidingly connected with the guide sliding column 782.

[0084] Specifically, when the seed discharge disc 751 rotates, the guide sliding column 782 is pressed against the surface of the seed discharge disc 751, and the spring 784 is compressed. When the guide sliding column 782 enters the inside of the adjusting hole 753, the spring 784 pushes up the guide sliding column 782 to push out the seeds that are partially blocked in the large seed suction hole 759 or the small seed suction hole 758. The seed discharge disc 751 continues to rotate, the conical surface of the guide sliding column 782 contacts the edge of the adjusting hole 753, the edge of the adjusting hole 753 extrudes the conical surface of the guide sliding column 782, thereby controlling the guide sliding column 782 to retract, the spring 784 is compressed, and finally the guide sliding column 782 is pressed against the surface of the seed discharge disc 751 again, thereby sequentially pushing out the seeds that are blocked in the large seed suction hole 759 or the small seed suction hole 758, effectively preventing the occurrence of the missing planting phenomenon.

[0085] By rotating the seed discharge disc 751 through the first transmission shaft 757 to discharge seeds, not only can the arc-shaped rotating block 761 be driven to rotate to stir the seeds in the arc-shaped area to the suction area, so that the seeds are more easily sucked, but also the rhombus-shaped sliding block 797 can be driven to slide along the guide sliding groove, and the circular sliding block 795 can be driven to move up and down. In the interval of the up-and-down movement of the circular sliding block 795, the air blowing pipe 794 jumps over each sucked small seed, preventing the sucked small seed from being blown away from the surface of the small seed suction hole 758. The air blowing pipe 794 sequentially blows air to each unsucked large seed suction hole 759, thereby blowing out the small seeds and seed coats that are blocked in each large seed suction hole 759, effectively preventing the phenomenon that, when the large seed suction hole 759 is blocked and then sucked again, the large seed cannot be sucked due to insufficient suction force, achieving the effect of high accuracy of seed discharge.

[0086] In the third embodiment, the sizes of some seeds are different, and the number of seeds needed to be planted at a time is also different. Some large seeds, such as watermelons and wax gourds, contain more nutrients and can meet the growth needs of single seedlings, so usually one seed is planted in each hole. Some small seeds, such as radishes and Chinese cabbages, need to be planted in multiple numbers in order to ensure uniform and dense emergence. However, the existing seeders can only plant one seed at a time and cannot plant multiple seeds according to the size of the seed, resulting in small seed planting density, and further resulting in low land utilization rate and low yield. Therefore, the following structure is designed to solve the above technical problems.

[0087] Please refer to Figure 15 The blanking assembly 77 comprises a blanking box 771 connected through the inside of the seed sowing shell 71, the lower side of the blanking box 771 is fixedly connected with the second seed conveying pipe 63, one side of the blanking box 771 is fixedly connected with a second motor 772, the output end of the second motor 772 penetrates through the blanking box 771 and is fixedly connected with a second transmission shaft 773, the outer side of the second transmission shaft 773 is uniformly fixedly connected with four pressure sensors 774, the inner wall of the blanking box 771 is fixedly connected with a baffle 775, and the baffle 775 is slidingly connected with each pressure sensor 774.

[0088] Specifically, the blanking box 771 is used for scraping the seeds adsorbed on the surface of the small suction seed hole 758 or the large suction seed hole 759, the falling seeds will fall on the pressure sensor 774, the pressure sensor 774 is used for detecting the pressure value of the falling seeds, the pressure value of the large seed is 4a, the pressure value of the small seed is a, when the total pressure value detected by the pressure sensor 774 reaches 4a, the pressure sensor 774 converts the detected pressure value into an electric signal and sends it to the second motor 772, after receiving the signal, the output end of the second motor 772 rotates by ninety degrees, driving the pressure sensor 774 to rotate around the second transmission shaft 773 as the axis.

[0089] When the large seed falls on the pressure sensor 774, the output end of the second motor 772 rotates by ninety degrees, driving the pressure sensor 774 to rotate around the second transmission shaft 773 as the axis, and the large seed falls out of the inside of the blanking box 771.

[0090] When four small seeds fall on the pressure sensor 774 in succession, the output end of the second motor 772 rotates by ninety degrees, driving the pressure sensor 774 to rotate around the second transmission shaft 773 as the axis, and the small seeds fall out of the inside of the blanking box 771.

[0091] By detecting the pressure value generated by the falling of seeds of different sizes through the pressure sensor 774, the size of the seeds is judged, and then the output end of the second motor 772 is controlled to rotate, so as to transmit and sow multiple small seeds or a single large seed, effectively preventing the phenomenon that the sowing density of small seeds is small due to the inability to sow multiple seeds according to the size of the seeds, and achieving the effect of high land utilization rate.

[0092] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0093] Finally, it should be noted that the above-mentioned only constitutes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications can be made to the technical solutions described in the foregoing embodiments, or equivalent replacements can be made to some of the technical features. Any modifications, equivalent replacements, improvements, and the like made within the spirit and principle of the present application shall fall within the scope of the protection of the present application.

Claims

1. An adjustable agricultural planting seeding device comprising a moving mechanism (1), characterized in that, The lower side of the moving mechanism (1) is provided with a fertilizer conveying mechanism (3), one side of the fertilizer conveying mechanism (3) is provided with a stubble cleaning mechanism (4), one side of the stubble cleaning mechanism (4) is provided with a first soil covering mechanism (5), one side of the first soil covering mechanism (5) is provided with a second soil covering mechanism (8) for covering seeds, the upper side of the moving mechanism (1) is provided with a fertilizer box (2), one side of the fertilizer box (2) is provided with a storage mechanism (6) for storing seeds, and the lower side of the storage mechanism (6) is provided with two seed discharge mechanisms (7) for discharging different sizes of seeds. The moving mechanism (1) comprises a first supporting plate (11) fixedly connected to the lower side of the fertilizer box (2), two supporting frames (16) are fixedly connected to one side of the first supporting plate (11), one side of each supporting frame (16) is provided with a positioning plate (12) fixedly connected with the first supporting plate (11), and two first connecting rods (13) are hingedly connected to the lower side of each positioning plate (12), one end of each first connecting rod (13) is fixedly connected with a connecting shaft (15), and the other end of the connecting shaft (15) is rotatably connected with a transmission wheel (14). The seed discharge mechanism (7) comprises a seed discharge shell (71) fixedly connected to the upper side of the supporting frame (16), and an adjusting assembly (75) is arranged in the seed discharge shell (71). The adjusting assembly (75) comprises an adjusting disc (752) and a first transmission shaft (757) rotatably connected to the inside of the seed discharge shell (71), the outer side of the first transmission shaft (757) is fixedly connected with a discharging disc (751) in sliding connection with the seed discharge shell (71), the inside of the discharging disc (751) is provided with a pressure button (95), the inside of the discharging disc (751) is divided into a negative pressure chamber and a discharging chamber, the outer side of the first transmission shaft (757) is fixedly connected with a connecting block (756), and the other end of the connecting block (756) is fixedly connected with a first motor (755). A plurality of adjusting holes (753) are uniformly arranged in the inside of the adjusting disc (752), a plurality of large seed suction holes (759) are uniformly arranged in the inside of the discharging disc (751), and one small seed suction hole (758) is arranged between every two large seed suction holes (759). The other side of the adjusting assembly (75) is provided with a stirring assembly (76), and the stirring assembly (76) comprises a stirring shaft (764). The upper side of the stirring assembly (76) is provided with a cleaning assembly (79) for blowing off the blocked seed coat and seeds, the cleaning assembly (79) comprises two guide sliding arc pieces (791) fixedly connected to the inner wall of the seed sowing shell (71), the middle of the two guide sliding arc pieces (791) is slidably connected with a circular slide block (795), the output end of the circular slide block (795) is fixedly connected with a blowing pipe (794), the input end of the circular slide block (795) is fixedly connected with an air inlet pipe (792), the other end of the air inlet pipe (792) is fixedly connected with a second electromagnetic valve (793), the outer side of the circular slide block (795) is fixedly connected with a connecting rod (796), the other end of the connecting rod (796) is hingedly connected with a rhombus slide block (797). The upper side of the stirring shaft (764) is provided with a guide sliding groove, the guide sliding groove is composed of two mutually intersecting spiral grooves (7642), the upper end and the lower end of the two spiral grooves (7642) are communicated by a semicircular arc groove (7641), and the rhombus slide block (797) is slidably connected with the guide sliding groove.

2. An adjustable agricultural planting seeding device according to claim 1, wherein, The middle of the two support frames (16) is fixedly connected with a transmission box (94), the inner part of the transmission box (94) is rotatably connected with three second spur gears (92), and the three second spur gears (92) are rotatably connected with each other, the upper side of the uppermost second spur gear (92) is rotatably connected with a first spur gear (91), and the two ends of the first spur gear (91) penetrate the transmission box (94), the lower side of the lowermost second spur gear (92) is rotatably connected with a third spur gear (93), and the third spur gear (93) is fixedly connected with the connecting shaft (15).

3. An adjustable agricultural planting seeding device according to claim 2, wherein, The storage mechanism (6) comprises two second support plates (62) fixedly connected to the upper side of the support frame (16), the upper side of the two second support plates (62) is fixedly connected with a seed storage box (61), the lower side of the support frame (16) is fixedly connected with a second furrow opener (64), the upper side of the seed sowing shell (71) is fixedly connected with an air pump (72), and the input end of the air pump (72) penetrates the seed sowing shell (71), the upper side of the seed sowing shell (71) is fixedly connected with a first seed conveying pipe (74), the upper side of the first seed conveying pipe (74) is fixedly connected with a first electromagnetic valve (73), and the first electromagnetic valve (73) is fixedly connected with the input end of the seed storage box (61).

4. The adjustable agricultural planting seeding device of claim 3, wherein, The output end of the first motor (755) is fixedly connected with a fourth spur gear (754), the adjusting disc (752) is rotatably connected to the outer side of the fourth spur gear (754), and the adjusting disc (752) is slidably connected with the discharging disc (751).

5. An adjustable agricultural planting seeding device according to claim 4, wherein, The stirring assembly (76) further comprises a second bevel gear (763) fixedly connected to one end of a first transmission shaft (757), one end of the first transmission shaft (757) is fixedly connected with the first spur gear (91), one side of the second bevel gear (763) is meshedly connected with a first bevel gear (762), the stirring shaft (764) penetrates through the middle of the first bevel gear (762), and the lower side of the stirring shaft (764) is fixedly connected with an arc-shaped rotating block (761).

6. An adjustable agricultural planting seeding device according to claim 5, wherein, The second electromagnetic valve (793) is fixedly connected to the inside of the output end of the second spur gear (92).

7. The adjustable agricultural planting seeding device of claim 1, wherein, The other side of the seed discharge shell (71) is further provided with a discharging assembly (77) for discharging different size seeds, the discharging assembly (77) comprises a discharging box (771) penetratingly connected to the inside of the seed discharge shell (71), one side of the discharging box (771) is fixedly connected with a second motor (772), the output end of the second motor (772) penetrates through the discharging box (771) and is fixedly connected with a second transmission shaft (773), the outer side of the second transmission shaft (773) is uniformly fixedly connected with four pressure sensors (774), the inner wall of the discharging box (771) is fixedly connected with a baffle (775), and the baffle (775) is slidingly connected with each pressure sensor (774).

8. The adjustable agricultural planting seeding device of claim 1, wherein, The top-up assembly (78) comprises a fixed plate (781) fixedly connected to the inner wall of the seed discharge shell (71), one side of the fixed plate (781) is fixedly connected with a guide sliding column (782), the inside of the guide sliding column (782) is fixedly connected with a spring (784), the other end of the spring (784) is fixedly connected with a jacking column (783), and the jacking column (783) is slidingly connected with the guide sliding column (782).

Images