Precision hill covering equipment for dryland millet and method of using same

Abstract

The application discloses a precision covering hole device for dryland millet and a use method thereof, and relates to the technical field of agricultural planting. The device comprises a U-shaped horizontal plate, a plurality of trapezoidal plates are slidably arranged in the U-shaped horizontal plate, L-shaped supports are fixedly arranged on the rear side of the top surface of the trapezoidal plates, fixed pin shafts are hingedly and telescopically arranged at the front end of the L-shaped supports, and the fixed pin shafts are connected through a hinging assembly; two pairs of fixed lug seats are fixedly arranged on the bottom surface of the trapezoidal plates, a swinging shaft is rotatably arranged between each pair of fixed lug seats, a swinging connecting plate is fixedly arranged on the middle part of the swinging shaft, a pair of linkage shafts are rotatably arranged on the two sides of the top surface of the trapezoidal plates, and the bottom end of the linkage shaft is connected with the corresponding swinging shaft on one side through a limiting assembly. The structures of the parts are matched with each other, the spacing between the trapezoidal plates is adjusted, and the reciprocal swinging of the soil covering baffle is realized, so that the device can adapt to different field ridge spacings, complete precision soil covering work for millet, and improve the efficiency and quality of soil covering. The device has good practicability and popularization value.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural planting technology, especially to a precision covering hole device for millet in dry land and a using method thereof. BACKGROUND

[0002] In the process of agricultural planting, seeding is an important link to obtain basic material guarantee of crops. For millet planted in arid areas, the traditional seeding method has certain limitations, such as the size and depth of the seeding hole are not accurate enough, which can easily lead to excessive or missed soil covering, affecting the utilization efficiency of soil resources.

[0003] The traditional seeding method can also be limited by the experience and technology of the growers, and the seeding efficiency is relatively low, and it is difficult to adapt to the demand of modern agriculture for precision planting. The existing millet covering device may not be flexible to adapt to different field ridge distances, and it is difficult to meet the diversified planting demand. The fixed structure design makes the device unable to be effectively adjusted when facing different specifications of field ridges, resulting in poor covering effect and affecting the planting quality of millet.

[0004] There can be a lack of precise transmission and limiting mechanism, and the action coordination and consistency of the covering baffle are poor, which cannot realize precision covering. Inhomogeneous covering can lead to excessive or insufficient covering of part of the seeds, affecting the germination and growth of the seeds. The traditional device can rely on manual spacing adjustment and operation, which is low in efficiency and difficult to ensure the adjustment accuracy. Manual operation not only consumes a lot of manpower and time, but also is prone to errors, which cannot meet the requirements of modern agricultural large-scale and precision planting. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the prior art, and a precision covering hole device for millet in dry land and a using method thereof are provided.

[0006] In order to solve the problems existing in the prior art, the present application adopts the following technical scheme:

[0007] The precision covering hole device for millet in dry land comprises a U-shaped horizontal plate, a plurality of equidistantly distributed trapezoidal plates are slidably arranged in the U-shaped horizontal plate, an L-shaped support is fixedly arranged on the top surface of each trapezoidal plate, a fixed pin shaft is hingedly and insertedly arranged at the front end of each L-shaped support, and a plurality of fixed pin shafts are connected through a hinge assembly.

[0008] Two pairs of fixed ear seats are fixedly arranged on the bottom surface of the trapezoidal plate, a swing shaft is rotatably and insertedly arranged between each pair of fixed ear seats, a covering baffle is fixedly arranged on the middle part of each swing shaft, and one pair of covering baffles is arranged in an "eight" shape. A pair of throughly distributed linkage shafts are rotatably and insertedly arranged on the top surface of the trapezoidal plate, and the bottom end of each linkage shaft is connected with the swing shaft on the corresponding side through a limiting assembly.

[0009] Preferably, a bending bracket is fixedly provided on the front side of the top surface of the trapezoidal plate, and a fixing seat is fixedly provided at both corners of the rear side of the top surface of the trapezoidal plate. The bending bracket and the fixing seat are provided with fixing sliding holes. A pair of parallel fixed crossbars are fixedly provided inside the U-shaped crossbar, and each fixed crossbar is slidably inserted into the corresponding fixing sliding hole.

[0010] Preferably, the hinge assembly includes a hinged short rod and a hinged long rod. The top ends of the outermost pair of fixed pins are each hinged with a pair of hinged short rods arranged in a "V" shape, and the top ends of the remaining fixed pins are each hinged with a pair of hinged long rods arranged in an "X" shape. The outer end of each hinged short rod is movably hinged to the outer end of the corresponding hinged long rod, and the outer ends of the remaining adjacent pairs of hinged long rods are movably hinged to each other.

[0011] Preferably, each L-shaped bracket has a circular through hole at its corner, and a threaded sleeve is fixed inside the pair of outermost circular through holes. A first motor with its output end facing inward is installed in the middle of the right side wall of the U-shaped horizontal plate. A bidirectional lead screw is fixed at the end of the motor shaft of the first motor. The outer end of the bidirectional lead screw rotates through the U-shaped horizontal plate and is inserted into the U-shaped horizontal plate. A pair of threaded sleeves are respectively spirally sleeved on both sides of the bidirectional lead screw.

[0012] Preferably, each linkage shaft is fitted with a concentric linkage gear at its top end, and a fixed connecting plate is fixedly connected to the bottom end of the linkage shaft by a pair of adjacent linkage gears. The outer end of the fixed connecting plate has a limit pin hole.

[0013] Preferably, the limiting assembly includes a sliding cylinder and a limiting pin. A pair of swing connecting plates are fixed on the front and rear sides of the swing shaft, and a sliding rod is fixed between the top ends of the pair of swing connecting plates. The sliding cylinder is slidably sleeved on the middle part of the sliding rod, and a vertically distributed limiting pin is fixed on the middle part of the sliding cylinder. The top end of the limiting pin is slidably inserted into the limiting pin hole.

[0014] Preferably, the rear end of the bending bracket is provided with a U-shaped notch, and a through-type sliding sleeve is rotatably inserted inside the U-shaped notch. A worm sleeve is concentrically fixed in the middle of the sliding sleeve, and the top end of one of the linkage shafts extends upward and is fitted with a concentrically fixed worm wheel. The worm sleeve and the worm wheel are meshed and connected.

[0015] Preferably, a second motor with its output end facing inward is installed on the front right side of the U-shaped horizontal plate. The motor shaft end of the second motor is fixedly provided with a fixed shaft. The outer end of the fixed shaft rotates through the U-shaped horizontal plate and is inserted into the U-shaped horizontal plate. The fixed shaft is sequentially inserted into several sliding sleeves.

[0016] Preferably, the upper and middle parts of the back of the U-shaped horizontal plate are provided with through rectangular holes, and the middle of the back of each L-shaped bracket is provided with a semi-circular notch, each of the semi-circular notches being suspended and sleeved on the corresponding fixed horizontal bar; each of the sliding sleeves is provided with a pair of limiting grooves, and a pair of limiting slide bars are fixed on the fixed shaft, each of the limiting slide bars being slidably engaged in the corresponding limiting grooves.

[0017] This invention also proposes a method for using a precision covering device for millet in dryland areas, comprising the following steps:

[0018] Step 1: The back of the U-shaped horizontal plate is fixedly installed at the rear of the seeder. According to the spacing of the millet field ridges, the spacing of several trapezoidal plates is adjusted. Under the driving action of the first motor, the motor shaft of the first motor drives the double-sided lead screw to rotate synchronously. The double-sided lead screw and a pair of threaded sleeves interact with the threads, causing the outermost pair of L-shaped brackets and the corresponding trapezoidal plates to move outward.

[0019] Under the combined hinge action of the hinged short rod and the hinged long rod, several trapezoidal plates are driven to be distributed in an equidistant translation, and the fixed seat and bending bracket are driven to slide along a pair of fixed crossbars, and the sliding sleeve is driven to slide along the fixed axis at the same time.

[0020] Step two: As the tractor drives the seeder to sow seeds, the seeder drives the U-shaped cross plate to move synchronously. Under the drive of the second motor, the motor shaft of the second motor drives the fixed shaft to rotate synchronously, and the fixed shaft drives the sliding sleeve and worm sleeve to rotate synchronously.

[0021] The worm gear sleeve meshes and drives the worm wheel, linkage shaft, and linkage gear to rotate. The linkage gear then meshes and drives another linkage gear and linkage shaft to rotate in the opposite direction. The linkage shaft drives the fixed connecting plate to rotate synchronously.

[0022] Step 3: The limiting pin hole and the limiting pin shaft on the fixed connecting plate form a limiting function. As the fixed connecting plate rotates, it drives the limiting pin shaft and the sliding cylinder to swing back and forth along the sliding rod, which in turn drives the swing connecting plate, the swing shaft, and the soil covering baffle to swing back and forth. This causes the pair of soil covering baffles under the pair of trapezoidal plates to swing back and forth relative to each other, and drives the soil on both sides of the ridge to cover the newly sown seeds, thus completing the precision soil covering operation of millet.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. In this invention, the trapezoidal plate spacing can be automatically and precisely adjusted through the structure of the first motor, the bidirectional lead screw and the threaded sleeve to adapt to different field ridge spacing. The hinged components ensure that the trapezoidal plates move equidistantly, and the fixed crossbar restricts the direction of movement to ensure stable and accurate adjustment. This improves the versatility of the equipment, enabling it to be used under different planting conditions, meeting the diverse needs of millet planting, and is easy to operate, thus improving the efficiency of use.

[0025] 2. In this invention, the second motor drives the relevant components, which are transmitted through worm gears, linkage shafts and gears, so that the soil covering baffle can swing back and forth. The limiting component ensures the accuracy and stability of the transmission, and allows the soil covering action to be carried out according to the predetermined trajectory. This effectively realizes the precision soil covering of millet, improves the efficiency and quality of soil covering, ensures a good growth environment for seeds, and ensures the reliability and stability of the equipment.

[0026] In summary, the various structural components of this invention work together to achieve the adjustment of the trapezoidal plate spacing and the reciprocating swing of the soil covering baffle, which can adapt to different field ridge spacing, complete the precise soil covering operation of millet, improve the efficiency and quality of soil covering, and have good practicality and promotion value. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a rear view schematic diagram of the overall structure of the present invention;

[0030] Figure 3 This is an exploded view of the overall structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the trapezoidal plate and a pair of soil-covered baffles of the present invention;

[0032] Figure 5 This is a rear view schematic diagram of the trapezoidal plate and a pair of soil-covered baffles structure of the present invention;

[0033] Figure 6 This is an exploded view of the trapezoidal plate and a pair of soil-covered baffles structure of the present invention;

[0034] The following are the components listed in the diagram: 1. U-shaped horizontal plate; 2. Fixed horizontal bar; 3. Hinge short bar; 4. Hinge long bar; 5. Threaded sleeve; 6. Two-way lead screw; 7. First motor; 8. Worm sleeve; 9. Fixed shaft; 10. Second motor; 11. Trapezoidal plate; 12. Fixed seat; 13. L-shaped bracket; 14. Bending bracket; 15. Fixed ear seat; 16. Sliding sleeve; 17. Worm gear; 18. Linkage shaft; 19. Linkage gear; 20. Fixed connecting plate; 21. Slide cylinder; 22. Limiting pin; 23. Swing shaft; 24. Swing connecting plate; 25. Slide rod; 26. Soil covering baffle. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Example: This example provides a precision covering hole device for millet in dryland areas. See [link / reference]. Figures 1-6 Specifically, it includes a U-shaped horizontal plate 1, which serves as the main frame of the equipment and provides a foundation for the installation and support of other components. A rectangular through hole is provided in the upper middle part of the back to facilitate connection with the seeder and to provide space for the installation of the L-shaped bracket 13. The overall structure is stable and can withstand various forces during the operation of the equipment, ensuring the normal operation of the equipment. It is also convenient to integrate with the seeder for matching use.

[0037] Several equally spaced trapezoidal plates 11 are slidably arranged inside the U-shaped horizontal plate 1. The trapezoidal plates 11 support and install other related components, such as L-shaped brackets 13, bending brackets 14, and fixed seats 12. Their number and distribution can be adjusted according to the spacing of the millet field ridges to adapt to different planting needs. By adjusting the spacing of the trapezoidal plates 11, different field ridge spacings can be flexibly adapted to improve the versatility and adaptability of the equipment and meet the needs of millet precision covering hole operation under different planting conditions.

[0038] Each trapezoidal plate 11 has an L-shaped bracket 13 fixedly installed on the rear side of its top surface. The L-shaped bracket 13 is fixedly connected to the rear side of the top surface of the trapezoidal plate 11 and is used to install the hinge assembly and the threaded sleeve 5. At the same time, it cooperates with the bidirectional lead screw 6 through the circular through hole at its corner to realize the spacing adjustment of the trapezoidal plate 11, providing an installation position for the hinge assembly and the threaded sleeve 5, so that the spacing adjustment of the trapezoidal plate 11 can be carried out smoothly, ensuring the stability and adjustability of the equipment structure.

[0039] Each L-shaped bracket 13 has a fixed pin hinged to its front end, and several fixed pins are connected by a hinge assembly. The fixed pins are used to connect the L-shaped bracket 13 and the hinge assembly. The hinged short rod 3 and the hinged long rod 4 are connected to adjacent fixed pins by hinge, realizing the linkage between the trapezoidal plates 11. When adjusting the spacing of the trapezoidal plates 11, the joint action of the hinged short rod 3 and the hinged long rod 4 can drive several trapezoidal plates 11 to be equidistantly translated, ensuring the relative positional relationship between each trapezoidal plate 11 and improving the working accuracy and stability of the equipment.

[0040] Two pairs of obliquely distributed fixed lugs 15 are fixed on both sides of the bottom surface of the trapezoidal plate 11. A swing shaft 23 is rotatably inserted between each pair of fixed lugs 15. A soil covering baffle 26 is fixed in the middle of each swing shaft 23. The pair of soil covering baffles 26 are distributed in a figure-eight shape. The fixed lugs 15 are fixed on both sides of the bottom surface of the trapezoidal plate 11 for installing the swing shaft 23. The soil covering baffle 26 is fixedly connected in the middle of the swing shaft 23. The soil covering baffle 26 swings under the drive of the linkage shaft 18, thereby driving the soil covering baffle 26 to perform soil covering operation. This structural design enables the soil covering baffle 26 to swing back and forth, thereby effectively covering the soil on both sides of the ridge with the newly sown seeds, realizing precise soil covering of millet, and improving the efficiency and quality of soil covering.

[0041] A pair of through-type linkage shafts 18 are rotatably inserted on both sides of the top surface of the trapezoidal plate 11. The bottom end of each linkage shaft 18 is connected to the swing shaft 23 on the corresponding side through a limiting component. The linkage shaft 18 passes through both sides of the top surface of the trapezoidal plate 11, and a linkage gear 19 is sleeved at the top end. Adjacent linkage gears 19 are meshed and connected. The rotation of the linkage shaft 18 drives the fixed connecting plate 20 to rotate, thereby realizing the swing of the soil covering baffle 26. Through the transmission of the linkage shaft 18 and the linkage gear 19, the power can be effectively transmitted to the soil covering baffle 26. The meshing connection of adjacent linkage gears 19 ensures the coordination and consistency of the movement of each soil covering baffle 26, improving the stability and accuracy of the soil covering operation.

[0042] In the specific implementation process, such as Figure 1 and Figure 3As shown, a bending bracket 14 is fixedly provided on the front side of the top surface of the trapezoidal plate 11, and a fixed seat 12 is fixedly provided at the two corners of the rear side of the top surface of the trapezoidal plate 11. Fixed sliding holes are provided on the bending bracket 14 and the fixed seat 12. A pair of parallel fixed crossbars 2 are fixedly provided inside the U-shaped horizontal plate 1. Each fixed crossbar 2 is slidably inserted into the corresponding fixed sliding hole. Fixed sliding holes are provided on the bending bracket 14 and the fixed seat 12. The fixed crossbars 2 are slidably inserted into the fixed sliding holes to limit the movement direction of the trapezoidal plate 11 and ensure that it can slide along the fixed crossbars 2 when adjusting the spacing. The cooperation between the fixed crossbars 2, the bending bracket 14, and the fixed seat 12 makes the movement of the trapezoidal plate 11 more stable and accurate, avoids deviation or shaking during the movement, and improves the working accuracy and reliability of the equipment.

[0043] The hinge assembly includes a hinged short rod 3 and a hinged long rod 4. The top ends of the outermost pair of fixed pins are each hinged with a pair of hinged short rods 3 arranged in a "V" shape, and the top ends of the remaining fixed pins are each hinged with a pair of hinged long rods 4 arranged in an "X" shape. The outer end of each hinged short rod 3 is movably hinged to the outer end of the corresponding hinged long rod 4, and the outer ends of the remaining adjacent pairs of hinged long rods 4 are movably hinged to each other.

[0044] Each L-shaped bracket 13 has a circular through hole at its corner. The inner part of the outermost pair of circular through holes is fixed with a threaded sleeve 5. The middle of the right side wall of the U-shaped horizontal plate 1 is equipped with a first motor 7 with the output end facing inward. The motor shaft end of the first motor 7 is fixed with a bidirectional lead screw 6. The outer end of the bidirectional lead screw 6 rotates through the U-shaped horizontal plate 1 and is inserted into the U-shaped horizontal plate 1. A pair of threaded sleeves 5 are respectively spirally sleeved on both sides of the bidirectional lead screw 6.

[0045] The threaded sleeve 5 is fixed in the circular through hole of the outermost L-shaped bracket 13 and cooperates with the double-acting screw 6. The first motor 7 drives the double-acting screw 6 to rotate, and through the thread action, it drives the outermost pair of L-shaped brackets 13 and the corresponding trapezoidal plates 11 to move outward, thereby adjusting the spacing of the trapezoidal plates 11. Through the combination of the first motor 7, the double-acting screw 6 and the threaded sleeve 5, the automatic adjustment of the spacing of the trapezoidal plates 11 is realized. The operation is convenient and quick, improving the efficiency of the equipment and enabling precise adjustment according to different field ridge spacing.

[0046] In the specific implementation process, such as Figure 4 and Figure 6 As shown, each linkage shaft 18 is fitted with a concentric linkage gear 19 at its top end, and a pair of adjacent linkage gears 19 mesh with and connect the bottom end of the linkage shaft 18 to a fixed connecting plate 20, with a limit pin hole opened at the outer end of the fixed connecting plate 20.

[0047] The limiting assembly includes a sliding cylinder 21 and a limiting pin 22. A pair of swing connecting plates 24 are fixedly provided on the front and rear sides of the swing shaft 23, and a sliding rod 25 is fixedly provided between the top ends of the pair of swing connecting plates 24. The sliding cylinder 21 is slidably sleeved on the middle part of the sliding rod 25. The limiting pin 22 is fixedly provided vertically in the middle part of the sliding cylinder 21. The top end of the limiting pin 22 is slidably inserted into the limiting pin hole. The sliding cylinder 21 is slidably sleeved on the middle part of the sliding rod 25, and the limiting pin 22 is fixed in the middle part of the sliding cylinder 21. It is inserted into the limiting pin hole of the fixed connecting plate 20. The rotation of the fixed connecting plate 20 drives the limiting pin shaft 22 and the slide cylinder 21 to swing back and forth along the slide rod 25, which in turn drives the swing connecting plate 24 and the swing shaft 23 to swing. This limiting component design ensures the transmission relationship between the fixed connecting plate 20 and the swing connecting plate 24, so that the soil covering baffle 26 can swing back and forth according to the predetermined trajectory, realize precise soil covering operation, and improve the effect and quality of soil covering.

[0048] The rear end of the bending bracket 14 has a U-shaped notch. A sliding sleeve 16 is rotatably inserted into the U-shaped notch. A concentrically fixed worm sleeve 8 is fitted into the middle of the sliding sleeve 16. The top end of one of the linkage shafts 18 extends upwards and is fitted with a concentrically fixed worm wheel 17. The worm sleeve 8 meshes with the worm wheel 17. The sliding sleeve 16 is rotatably inserted into the U-shaped notch of the bending bracket 14, with the worm sleeve 8 fitted into the middle, and the worm wheel 17 fixed to the top end of the linkage shaft 18. The worm sleeve 8 is meshed with the worm wheel 17. The fixed shaft 9 is driven to rotate by the second motor 10, which in turn drives the sliding sleeve 16 and the worm sleeve 8 to rotate, and then drives the worm wheel 17 and the linkage shaft 18 to rotate. Through the meshing transmission of the worm sleeve 8 and the worm wheel 17, the power of the second motor 10 can be effectively transmitted to the linkage shaft 18, so as to realize the swing of the soil covering baffle 26. This transmission method has a certain speed reduction and torque increase effect, which can ensure the stability and reliability of the soil covering operation.

[0049] A second motor 10 with its output end facing inward is installed on the front right side of the U-shaped horizontal plate 1. A fixed shaft 9 is fixed to the end of the motor shaft of the second motor 10. The outer end of the fixed shaft 9 rotates through the U-shaped horizontal plate 1 and is inserted into the U-shaped horizontal plate 1. The fixed shaft 9 is sequentially inserted into several sliding sleeves 16. The second motor 10 is installed on the front right side of the U-shaped horizontal plate 1 and drives the fixed shaft 9 to rotate. The fixed shaft 9 is sequentially inserted into several sliding sleeves 16, driving the sliding sleeves 16 and the worm sleeve 8 to rotate synchronously, providing power for the soil covering operation. The second motor 10, as a power source, can stably provide power. Through the cooperation of the fixed shaft 9 and the sliding sleeves 16, the power is transmitted to various components, ensuring the smooth progress of the soil covering operation and improving the working efficiency of the equipment.

[0050] It should be noted that: In this embodiment, a rectangular through hole is provided in the upper middle part of the back of the U-shaped horizontal plate 1, and a semi-circular notch is provided in the middle of the back of each L-shaped bracket 13. Each semi-circular notch is suspended and sleeved on the corresponding fixed horizontal bar 2. A pair of limiting grooves are provided in each sliding sleeve 16, and a pair of limiting slide bars are fixed on the fixed shaft 9. Each limiting slide bar is slidably engaged in the corresponding limiting grooves.

[0051] Specifically, the working principle and operation method of this invention are as follows:

[0052] Step 1: The back of the U-shaped horizontal plate 1 is fixedly installed at the rear of the seeder. According to the spacing of the millet field ridges, the spacing of several trapezoidal plates 11 is adjusted. Under the driving action of the first motor 7, the motor shaft of the first motor 7 drives the bidirectional lead screw 6 to rotate synchronously. The bidirectional lead screw 6 and the thread action of a pair of threaded sleeves 5 drive the outermost pair of L-shaped brackets 13 and the corresponding trapezoidal plates 11 to move outward.

[0053] Under the joint hinge action of the hinged short rod 3 and the hinged long rod 4, several trapezoidal plates 11 are driven to be equidistantly translated and distributed, and the fixed seat 12 and the bending bracket 14 are driven to slide along a pair of fixed crossbars 2, and the sliding sleeve 16 is driven to slide along the fixed axis 9.

[0054] Step 2: As the tractor drives the seeder to sow seeds, the seeder drives the U-shaped cross plate 1 to move synchronously. Under the drive of the second motor 10, the motor shaft of the second motor 10 drives the fixed shaft 9 to rotate synchronously, and the fixed shaft 9 drives the sliding sleeve 16 and the worm sleeve 8 to rotate synchronously.

[0055] The worm sleeve 8 engages and drives the worm wheel 17, the linkage shaft 18, and the linkage gear 19 to rotate. The linkage gear 19 then engages and drives another linkage gear 19 and the linkage shaft 18 to rotate in the opposite direction. The linkage shaft 18 drives the fixed connecting plate 20 to rotate synchronously.

[0056] Step 3: The limiting pin hole on the fixed connecting plate 20 and the limiting pin shaft 22 form a limiting function. As the fixed connecting plate 20 rotates, it drives the limiting pin shaft 22 and the slide cylinder 21 to swing back and forth along the slide rod 25, which in turn drives the swing connecting plate 24, the swing shaft 23, and the soil covering baffle 26 to swing back and forth. This causes the pair of soil covering baffles 26 below the pair of trapezoidal plates 11 to swing back and forth relative to each other, and drives the soil on both sides of the ridge to cover the newly sown seeds, thus completing the precision soil covering operation of millet.

[0057] The various parts of this invention work together to adjust the spacing of the trapezoidal plates 11 and the reciprocating swing of the soil covering baffle 26, which can adapt to different ridge spacings, complete the precise soil covering operation of millet, improve the efficiency and quality of soil covering, and have good practicality and promotion value.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A precision covering hole device for millet in dryland, comprising a U-shaped horizontal plate (1), characterized in that: The U-shaped horizontal plate (1) is slidably provided with several equally spaced trapezoidal plates (11). Each trapezoidal plate (11) has an L-shaped bracket (13) fixedly installed on the rear side of its top surface. Each L-shaped bracket (13) has a fixed pin inserted at its front end and the fixed pins are connected by a hinge assembly. The bottom surface of the trapezoidal plate (11) is provided with two pairs of obliquely distributed fixed lugs (15). Each pair of fixed lugs (15) is rotatably inserted with a swing shaft (23). Each swing shaft (23) has a soil covering baffle (26) fixedly installed in the middle and the pair of soil covering baffles (26) are arranged in a figure-eight shape. The top surface of the trapezoidal plate (11) is rotatably inserted with a pair of through-type linkage shafts (18). The bottom end of each linkage shaft (18) is connected to the swing shaft (23) on the corresponding side by a limiting assembly. A bending bracket (14) is fixedly provided on the front side of the top face of the trapezoidal plate (11). Each of the linkage shafts (18) is fitted with a concentric linkage gear (19) at the top end, and a fixed connecting plate (20) is fixed at the bottom end of the linkage shaft (18) where an adjacent pair of linkage gears (19) meshes and connects. The outer end of the fixed connecting plate (20) has a limit pin hole. The limiting assembly includes a slide cylinder (21) and a limiting pin (22). A pair of swing connecting plates (24) are fixed on the front and rear sides of the swing shaft (23), and a slide rod (25) is fixed between the top ends of the pair of swing connecting plates (24). The slide cylinder (21) is slidably sleeved in the middle of the slide rod (25). A vertically distributed limiting pin (22) is fixed in the middle of the slide cylinder (21), and the top end of the limiting pin (22) is slidably inserted into the limiting pin hole. The rear end of the bending bracket (14) is provided with a U-shaped notch, and a sliding sleeve (16) is inserted through the U-shaped notch. A worm sleeve (8) is fitted in the middle of the sliding sleeve (16) and is fixedly connected to the worm gear (17). The top end of one of the linkage shafts (18) extends upward and is fitted with a worm wheel (17) fixedly connected to the worm gear (17). The worm sleeve (8) and the worm wheel (17) are meshed and connected.

2. The precision covering hole device for dryland millet according to claim 1, characterized in that: Fixed seats (12) are fixed at the two corners of the rear side of the top surface of the trapezoidal plate (11). Fixed sliding holes are opened on the bending bracket (14) and the fixed seats (12). A pair of parallel fixed crossbars (2) are fixed inside the U-shaped horizontal plate (1). Each fixed crossbar (2) is slidably inserted into the corresponding fixed sliding hole.

3. The precision covering hole device for dryland millet according to claim 2, characterized in that: The hinge assembly includes a hinged short rod (3) and a hinged long rod (4). The top ends of the outermost pair of fixed pins are hinged with a pair of hinged short rods (3) arranged in a "V" shape. The top ends of the remaining fixed pins are hinged with a pair of hinged long rods (4) arranged in an "X" shape. The outer end of each hinged short rod (3) is movably hinged to the outer end of the corresponding hinged long rod (4), and the outer ends of the remaining adjacent pairs of hinged long rods (4) are movably hinged to each other.

4. The precision covering hole device for dryland millet according to claim 3, characterized in that: Each L-shaped bracket (13) has a circular through hole at its corner. The inner side of the pair of circular through holes on the outermost side is fixed with a threaded sleeve (5). The middle of the right side wall of the U-shaped horizontal plate (1) is equipped with a first motor (7) with the output end facing inward. The motor shaft end of the first motor (7) is fixed with a bidirectional screw (6). The outer end of the bidirectional screw (6) rotates through the U-shaped horizontal plate (1) and is inserted on the U-shaped horizontal plate (1). A pair of threaded sleeves (5) are respectively spirally sleeved on both sides of the bidirectional screw (6).

5. The precision covering hole device for dryland millet according to claim 4, characterized in that: A second motor (10) with its output end facing inward is installed on the front right side of the U-shaped horizontal plate (1). A fixed shaft (9) is fixedly provided at the end of the motor shaft of the second motor (10). The outer end of the fixed shaft (9) rotates through the U-shaped horizontal plate (1) and is inserted into the U-shaped horizontal plate (1). The fixed shaft (9) is sequentially inserted into several sliding sleeves (16).

6. The precision covering hole device for dryland millet according to claim 5, characterized in that: The upper back of the U-shaped horizontal plate (1) has a through rectangular hole, and the middle back of each L-shaped bracket (13) has a semi-circular notch. Each semi-circular notch is suspended and sleeved on the corresponding fixed horizontal bar (2). Each sliding sleeve (16) has a pair of limiting grooves, and a pair of limiting strips are fixed on the fixed shaft (9). Each limiting strip is slidably engaged in the corresponding limiting grooves.

7. The method of using the precision covering hole device for dryland millet according to claim 6, characterized in that, Includes the following steps: Step 1: The back of the U-shaped horizontal plate (1) is fixedly installed at the rear of the seeder. According to the spacing of the millet field ridges, the spacing of several trapezoidal plates (11) is adjusted. Under the driving action of the first motor (7), the motor shaft of the first motor (7) drives the bidirectional screw (6) to rotate synchronously. The bidirectional screw (6) and a pair of threaded sleeves (5) interact with the threads, causing the outermost pair of L-shaped brackets (13) and the corresponding trapezoidal plates (11) to move outward. Under the joint hinge action of the hinged short rod (3) and the hinged long rod (4), several trapezoidal plates (11) are driven to be equidistantly translated and distributed, and the fixed seat (12) and the bending bracket (14) are driven to slide along a pair of fixed crossbars (2), and the sliding sleeve (16) is driven to slide along the fixed axis (9). Step 2: As the tractor drives the seeder to sow seeds, the seeder drives the U-shaped cross plate (1) to move synchronously. Under the driving action of the second motor (10), the motor shaft of the second motor (10) drives the fixed shaft (9) to rotate synchronously. The fixed shaft (9) drives the sliding sleeve (16) and the worm sleeve (8) to rotate synchronously. The worm sleeve (8) meshes and drives the worm wheel (17), the linkage shaft (18), and the linkage gear (19) to rotate. The linkage gear (19) then meshes and drives another linkage gear (19) and the linkage shaft (18) to rotate in the opposite direction. The linkage shaft (18) drives the fixed connecting plate (20) to rotate synchronously. Step 3: The limiting pin hole on the fixed connecting plate (20) and the limiting pin shaft (22) form a limiting function. As the fixed connecting plate (20) rotates, it drives the limiting pin shaft (22) and the slide cylinder (21) to swing back and forth along the slide rod (25), which in turn drives the swing connecting plate (24), the swing shaft (23), and the soil covering baffle (26) to swing back and forth, so that the pair of soil covering baffles (26) under the pair of trapezoidal plates (11) swing back and forth relative to each other, and drives the soil on both sides of the ridge to cover the newly sown seeds, thus completing the millet precision soil covering operation.

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