Soybean precision hill-drop quantitative regulation device

Abstract

The present application relates to the technical field of agricultural machinery, in particular to a precise hole-planting quantitative control device for soybeans, which comprises a seeding vehicle frame and a control platform, a support with a material hopper is arranged on the seeding vehicle frame, and a material guide pipe is connected below the material hopper. The core of the device is a zigzag type turnover support arranged at the bottom of the support seat, and the upper and lower passages thereof are respectively connected with the material guide pipe and a quantitative control machine frame arranged at the top end of a hole-planting cylinder. An installation box is arranged on the control platform, and the box is provided with an adjusting machine cylinder, a machine cylinder adjusting part and a machine frame adjusting part. The end of a push rod of the adjusting machine cylinder extends into a temporary storage interval of the quantitative control machine frame, the machine cylinder adjusting part is used for driving the push rod to move to adjust the volume of the temporary storage interval, and the machine frame adjusting part controls the opening and closing of a discharging baffle at the bottom of the machine frame. Through physical volume measurement and mechanical linkage control, the present application realizes high-precision and high-stability adjustment of the number of seeds planted in each hole.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically a precise soybean planting and quantitative control device. Background Technology

[0002] The uniformity and accuracy of soybean sowing directly affect emergence rate, population structure, and final yield. Traditional seeders often use external grooved wheel or centrifugal seed metering devices, which are difficult to achieve precise single-hole quantitative sowing, often resulting in problems such as missed sowing, over-sowing, or seed damage. While some existing precision sowing devices have improved accuracy, their complex structures, poor adaptability to different seeds, and lack of real-time monitoring and feedback mechanisms during the sowing process make it impossible to consistently guarantee the accuracy of the number of seeds per hole under varying field conditions. Therefore, there is an urgent need for a soybean hill-sowing device with a reasonable structure, precise control, and real-time sensing of the sowing status. Summary of the Invention

[0003] This invention aims to provide a precise soybean planting and quantitative control device. It utilizes a unique zigzag rotating support to buffer and regulate the seed flow, and employs a dynamically adjustable quantitative control frame and a coordinated pushing and blocking mechanism to achieve high-precision control of the number of soybeans per feeding. A further embodiment integrates a mechanical induction metering component, enabling real-time monitoring of the feeding frequency without affecting the seed flow, thus providing a foundation for intelligent planting management.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A precise hill-planting quantitative control device for soybeans includes a planting vehicle frame and a control platform. The planting vehicle frame is provided with a support base, and a planting bracket is mounted on the support base. A material hopper is mounted on the planting bracket, and a discharge device and a guide pipe installed on the discharge device are provided at the bottom of the material hopper.

[0006] The control platform has a fixing bolt and a seeding tube installed on the fixing bolt along the side edge of the platform. The top input end of the seeding tube is equipped with a quantitative control frame.

[0007] The bottom of the support base is provided with a turnover bracket, which includes an upper turnover channel frame and a lower turnover channel frame. The upper and lower turnover channel frames are connected in a zigzag structure. The inlet end of the upper turnover channel frame is connected to the guide pipe, and the outlet end of the lower turnover channel frame is connected to the quantitative control machine frame.

[0008] The control platform is also equipped with an installation box, which is equipped with an adjusting cylinder, a cylinder adjusting component, and a frame adjusting component. The pushing end of the adjusting cylinder extends into the frame of the quantitative control machine frame. The cylinder adjusting component is used to drive the adjusting cylinder to move in order to control the size of the temporary storage area of ​​the quantitative control machine frame. The frame adjusting component is used to control the opening and closing of the feeding of the quantitative control machine frame.

[0009] The main body of the quantitative control frame is a frame, and a temporary storage area is provided inside the frame. A limit sleeve is installed on the frame. The regulating cylinder includes an adjusting push rod, which is limited inside the limit sleeve, and the length of the temporary storage area is controlled by the extension and retraction distance of the end of the adjusting push rod.

[0010] The frame is provided with a sliding guide rail on its side edge, and a feeding baffle that can slide along the sliding guide rail is provided at the bottom of the frame. The end of the feeding baffle is provided with an outer connecting ring. The frame adjustment component is connected to the outer connecting ring to control the opening and closing of the feeding baffle.

[0011] After the feeding baffle opens and closes, soybeans fall into the channel of the seeding cylinder in sequence. When the feeding baffle opens, the adjusting push rod will advance slowly to push the soybeans down and close the space of the temporary storage area to prevent the soybeans in the next turnover channel from sliding down.

[0012] As a further aspect of the present invention: the support seat is provided with a frame connecting frame for connecting to the traction source, and the two ends of the support seat are provided with side brackets and support wheels installed at the bottom of the side brackets.

[0013] As a further embodiment of the present invention: the top of the turnover channel frame is welded to the support base and located directly below the guide pipe; a support rod is provided at the bottom of the turnover bracket; a height limiting baffle is installed on the support rod; and the height limiting baffle is located above the channel of the lower turnover channel frame.

[0014] As a further aspect of the present invention: the adjusting cylinder includes a cylinder base, a fixed cylinder mounted on the cylinder base, and an adjusting push rod telescopically mounted inside the fixed cylinder, with the cylinder base fixed to the mounting box.

[0015] As a further aspect of the present invention: the barrel adjusting component includes an adjusting electric shaft mounted on the mounting box, a transmission bolt mounted on the shaft end of the adjusting electric shaft, and an adjusting connecting rod mounted on the transmission bolt. A push rod connecting sleeve is installed at the rod end of the adjusting connecting rod, and the push rod connecting sleeve is fixed on the adjusting push rod.

[0016] As a further aspect of the present invention: the frame adjustment component includes a control shaft mounted on the mounting box and a swing block mounted on the end of the control shaft. An angle fine-tuning bolt is provided on the block body of the swing block. A control link is mounted on the angle fine-tuning bolt through a movable bolt. A pull bolt is provided at the end of the control link and the pull bolt is connected to the outer ring of the baffle.

[0017] As a further aspect of the present invention: the discharge end of the lower turnover channel frame is provided with a metering component, the metering component includes a metering frame and an induction spring disposed within the metering frame, and the side edge of the metering frame is movably installed via a swing shaft.

[0018] As a further aspect of the present invention: the metering component further includes a metering mounting base fixedly installed on the limiting sleeve, a pressure metering cylinder is installed on the metering mounting base via a folding bolt, a sensing rod is provided on the cylinder body of the pressure metering cylinder, and the sensing rod is connected to the metering frame via a transmission connecting bolt; each soybean falls and squeezes the sensing spring, the elastic reaction force of the sensing spring will cause the swing shaft to swing, thereby driving the extension and retraction of the sensing rod, and the pressure metering cylinder senses the change in internal pressure to know the number of times the soybean falls.

[0019] As a further aspect of the present invention, the advancing speed of the adjusting push rod is coordinated with the opening and closing speed of the feeding baffle to ensure that, during a single feeding process, the soybeans in the temporary storage area are completely pushed out and the new soybean flow is reliably blocked.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention rectifyes and buffers the initial seed flow through a zigzag turnover channel, transforming it into a stable, single-column seed flow. A push rod with a precisely adjustable end face serves as a dynamic gate, working in conjunction with a fixed frame to form a physical metering chamber with adjustable volume, enabling direct and precise setting of the number of seeds fed in a single operation. Furthermore, at the terminal position where the metered seeds are ejected, the upstream seed flow is physically cut off simultaneously. Through programmed coordination with the opening and closing of the bottom baffle, physical isolation and seamless connection between the metering, feeding, and cutoff stages are achieved.

[0022] Furthermore, a monitoring mechanism based on mechanical sensing and fluid pressure sensing was introduced, converting the minute mechanical action of seeds passing through into detectable electrical signals, enabling non-invasive real-time counting of the number of seeds dispensed. This fundamentally solves the problems of inaccurate quantitative measurement and missed or over-sown seeds caused by traditional seed metering devices that rely on the friction between seeds. Through physical volume measurement and mechanical coordinated control, the accuracy and stability of the number of seeds sown per hole are improved; the integrated monitoring function effectively improves the quality controllability and automation level of the sowing operation.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0025] Figure 1This is a schematic diagram of the overall structure of the soybean precision hill-planting quantitative control device provided in an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure of the turnover support and quantitative control frame provided in the embodiment of the present invention.

[0027] Figure 3 For the present invention Figure 2 A schematic diagram of the structure of region A in the middle.

[0028] Figure 4 This is a schematic diagram of the structure of the frame adjustment component provided in an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the metering component provided in an embodiment of the present invention.

[0030] In the diagram: 1. Seeding vehicle frame; 2. Turnover support; 3. Seeding support; 4. Control platform; 5. Quantitative control frame; 6. Adjusting cylinder; 7. Cylinder adjusting component; 8. Frame adjusting component; 9. Metering component; 11. Support base; 12. Frame connecting frame; 13. Side support; 14. Support wheel; 21. Upper turnover channel frame; 22. Lower turnover channel frame; 23. Support rod; 24. Height limit baffle; 31. Material hopper; 32. Discharge device; 33. Guide pipe; 41. Fixing bolt; 42. Seeding cylinder; 43. Mounting box; 51. Frame body; 52. Temporary Storage area; 53. Limit sleeve; 54. Discharge baffle; 55. Sliding guide rail; 56. Baffle outer connecting ring; 61. Machine barrel base; 62. Fixed cylinder; 63. Adjusting push rod; 71. Adjusting electric shaft; 72. Transmission bolt; 73. Adjusting connecting rod; 74. Push rod connecting sleeve; 81. Control rotating shaft; 82. Swing block; 83. Angle fine adjustment bolt; 84. Control connecting rod; 85. Pull bolt; 91. Metering frame; 92. Swing shaft; 93. Induction spring; 94. Transmission connecting bolt; 95. Induction rod; 96. Pressure metering cylinder; 97. Metering mounting base. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, examples of which are illustrated in the drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or identical elements.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0034] Example 1, please refer to Figures 1 to 4 This embodiment provides a precise soybean hill-planting quantitative control device. The main body of the device includes a planting frame 1, with a frame connecting frame 12 at the front end for connecting to a tractor or other traction source. Support wheels 14 are mounted on both ends of the frame via side brackets 13, allowing the entire device to be towed and moved. A support base 11 is fixed above the middle of the planting frame 1, and a planting support 3 is vertically mounted on the support base 11. A material hopper 31 for holding soybean seeds is installed on the top of the planting support 3, and a discharge device 32 is located at the bottom center of the material hopper 31. A vertically downward guide pipe 33 is connected below the discharge device 32.

[0035] Below the support base 11, a crucial transfer bracket 2 is installed. This transfer bracket 2 consists of an upper transfer channel frame 21 and a lower transfer channel frame 22, which are welded together to form a smoothly transitioning zigzag curved channel. The top inlet of the upper transfer channel frame 21 faces and receives the bean flow from the guide pipe 33, and its top is fixed to the bottom surface of the support base 11 by welding. The bottom outlet of the lower transfer channel frame 22 extends horizontally forward. To limit the height of the bean flow within the channel, a height-limiting baffle 24 is installed directly above the channel of the lower transfer channel frame 22 via a support rod 23 fixed to the bottom of the transfer bracket 2.

[0036] At the front of the device, there is an independent control platform 4, which is mounted on the seeding frame 1 via a support structure. Multiple fixing bolts 41 are provided on one edge of the control platform 4, and a seeding cylinder 42 is vertically mounted on each fixing bolt 41. The bottom end of the seeding cylinder 42 is inserted into the soil for seeding. A quantitative control frame 5 is installed at the top inlet of each seeding cylinder 42. A mounting box 43 is also fixed to the platform 4, and the control actuators are centrally arranged inside the mounting box 43.

[0037] The core of the quantitative control frame 5 is a horizontally arranged rectangular frame 51, with a temporary storage area 52 inside the frame 51 for temporarily accommodating a fixed quantity of soybeans. The top of the frame 51 is sealed to the discharge port of the lower turnover channel frame 22, while the bottom is open. A limiting sleeve 53 is fixed on the outer wall of the frame 51 facing the mounting box 43. Sliding guide rails 55 are arranged along the length of the bottom of the frame 51 on both sides. A discharge baffle 54 is slidably fitted onto the sliding guide rails 55 via sliders on both sides, thereby opening and closing the bottom of the entire frame 51. A baffle outer connecting ring 56 extends from the end of the discharge baffle 54 near the mounting box 43.

[0038] The mounting box 43 is equipped with an adjusting cylinder 6, a cylinder adjusting component 7, and a frame adjusting component 8. The adjusting cylinder 6 includes a cylinder base 61 fixed to the mounting box 43, on which a horizontally positioned fixed cylinder 62 is mounted. An adjusting push rod 63 is telescopically fitted inside the fixed cylinder 62. The working end of the adjusting push rod 63 extends forward horizontally and is precisely inserted into the limiting sleeve 53 on the quantitative control frame 5, thereby allowing its end to extend into the temporary storage area 52. The cylinder adjusting component 7 is used to drive the adjusting push rod 63 to extend and retract. It includes an adjusting electric shaft 71 mounted on the mounting box 43. The output end of the adjusting electric shaft 71 is connected to a transmission bolt 72. An adjusting connecting rod 73 is hinged to the transmission bolt 72. The other end of the adjusting connecting rod 73 is fixedly connected to the rod body of the adjusting push rod 63 through a push rod connecting sleeve 74. The frame adjustment component 8 is used to control the opening and closing of the feeding baffle 54. It includes a control shaft 81 mounted on the mounting box 43. A swing block 82 is fixed at the end of the control shaft 81. An angle fine-tuning bolt 83 is provided on the swing block 82. One end of a control linkage 84 is connected to the angle fine-tuning bolt 83 through a movable bolt, and the other end is provided with a pull bolt 85. The pull bolt 85 is directly connected to the outer connecting ring 56 of the baffle.

[0039] When the device is working, the traction power drives the seeding frame 1 forward. Soybeans in the material hopper 31 are discharged in an orderly manner through the discharge device 32 under gravity, and fall into the turnover channel frame 21 through the guide pipe 33. The soybeans slide down the zigzag channel, which effectively consumes their vertical kinetic energy and transforms the dense flow of soybeans into a sparse single-row flow. They then slide horizontally through the next turnover channel frame 22 into the temporary storage area 52 of the quantitative control machine frame 5.

[0040] Initially, the feeding baffle 54 is closed, blocking the bottom of the frame 51. Simultaneously, the end of the adjusting push rod 63 is adjusted and positioned at a specific location within the temporary storage area 52 according to the preset number of seeds per hole, thus forming a metering space of fixed length between the inlet and the push rod end face. Once the beans flow into and fill this metering space, they are blocked. When feeding is needed, the frame adjusting component 8 activates, controlling the rotating shaft 81 to rotate and drive the swing block 82, which in turn quickly pulls open the feeding baffle 54 via the control link 84 and the pull bolt 85. At the same time, or with a slight delay, the barrel adjusting component 7 activates, and the adjusting electric shaft 71 pushes the adjusting push rod 63 forward quickly (towards the hole-planting cylinder 42) a certain distance via the transmission bolt 72 and the adjusting link 73. This pushing action produces two effects: first, it pushes the pre-measured soybeans in the temporary storage area 52 away, allowing them to fall entirely into the seeding cylinder 42 below from the open bottom; second, at the end of the pushing action, the new end position of the adjusting rod 63 immediately closes the entrance side of the temporary storage area 52, preventing the continued flow of subsequent soybeans into the next turnover channel frame 22. After feeding is completed, the feeding baffle 54 closes first, and then the adjusting rod 63 retracts to its original set position, preparing for the next measurement and feeding cycle. The seeding cylinder 42 guides the fallen, measured amount of soybeans into the soil, completing one precise seeding.

[0041] The core technical principle of this embodiment lies in "spatial physical separation and dynamic mechanical coordination". First, the initial seed flow is rectified and buffered by the zigzag turnover support 2, transforming it into a stable and continuous single-seed sequence flow, creating the preconditions for accurate measurement. Second, the end face of the adjusting push rod 63 is used as a dynamically adjustable "moving gate", which, together with the fixed frame wall of the quantitative control frame 5, forms a variable-length physical metering chamber (temporary storage area 52). The volume of this chamber directly determines the number of seeds it can hold. By precisely controlling the extension and retraction stroke of the adjusting push rod 63, the seeding rate per hole can be steplessly adjusted. Finally, the "pushing out" and "blocking" functions are uniquely integrated into the same action of the adjusting push rod 63, and precisely coordinated in time with the opening and closing action of the feeding baffle 54. The pushing action achieves precise delivery, and at the same time, its terminal position instantly cuts off the upstream seed flow, realizing seamless connection and physical isolation of the three links of metering, delivery and cutoff, fundamentally avoiding the problem of multi-seeding or cross-seeding caused by differences in seed mobility.

[0042] Example 2, please refer to Figure 2 and Figure 5 This embodiment enhances the functionality of the structure described in Embodiment 1 by integrating a mechanical induction metering component 9 for real-time monitoring of material feeding. All components and connections from Embodiment 1 are retained. The metering component 9 is primarily installed in the connection area between the discharge end of the lower turnover channel frame 22 and the quantitative control frame 5.

[0043] The metering component 9 includes a metering frame 91, which is hinged to the lower side wall of the discharge end of the lower turnover channel frame 22 via a horizontally arranged swing shaft 92, allowing the metering frame 91 to swing up and down at a small angle around the swing shaft 92. Inside the frame of the metering frame 91, a slightly elastic metal sensing spring 93 is horizontally tensioned and fixed, which constitutes a "sensing tongue" that must make slight contact when the beans flow through.

[0044] A metering mounting base 97 is fixedly installed on the limiting sleeve 53 of the quantitative control frame 5. A pressure measuring cylinder 96 is mounted on the metering mounting base 97 at a certain angle via a hinge bolt. The pressure measuring cylinder 96 is filled with gas or liquid and is equipped with a sensor that can precisely measure changes in internal pressure. The piston rod end of the pressure measuring cylinder 96 extends outward as a sensing rod 95. One end of a transmission connecting rod 94 is hinged to the side wall of the metering frame 91, and the other end is hinged to the end of the sensing rod 95 of the pressure measuring cylinder 96. In this way, the swinging motion of the metering frame 91 can be converted into the linear extension and retraction motion of the sensing rod 95 through the transmission connecting rod 94, thereby changing the internal pressure of the pressure measuring cylinder 96.

[0045] As the soybeans slide out of the lower turnover channel frame 22 and prepare to enter the temporary storage area 52 of the quantitative control frame 5, each soybean rolls sequentially over the sensing spring 93 inside the metering frame 91. The soybeans exert a slight downward pressure on the sensing spring 93 as they pass, forcing the metering frame 91 to overcome its mounting damping and produce a slight, instantaneous downward swing around the swing axis 92. This swinging motion is immediately transmitted to the sensing rod 95 of the pressure metering cylinder 96 via the transmission connecting rod 94, causing it to produce a slight compression or extension stroke. The high-precision sensor inside the pressure metering cylinder 96 quickly captures the pressure fluctuation signal caused by the instantaneous change in volume. Each valid pressure pulse signal represents a soybean passing through the sensing spring 93.

[0046] Before each feeding baffle 54 opens, the system monitors the number of beans passing through the sensing spring 93 to ensure that the temporary storage area 52 is filled with a preset number of beans. During feeding, when the adjusting push rod 63 pushes out the beans, the beans also pass through the sensing spring 93 and fall into the seeding cylinder 42, and the metering component 9 records the number of beans fed again. By comparing the counts before and after feeding, or by directly counting the number of pulses during a single feeding process, the actual number of beans falling in this seeding can be known in real time. This data can be transmitted to a display instrument or controller for monitoring the seeding status.

[0047] This embodiment amplifies the mechanical action of the soybean grains through a signal (the micro-force applied to the spring) via a lever mechanism (measuring frame 91 and swing shaft 92), converting it into the linear motion of another mechanical component (the extension and retraction of the sensing rod 95). This is ultimately transformed into a pressure change within a closed fluid system—a physical quantity easily detected by highly sensitive electronic sensors. The most significant benefit of this embodiment lies in achieving real-time quantitative monitoring and potential feedback control of the sowing process. The driver or control system can know the actual amount of material dispensed per hole in real time, promptly identifying missed sowing problems caused by blockages, empty chambers, etc. The metering data can be used for operational quality assessment and yield prediction, providing data support for precision agriculture. This metering method is independent yet organically linked to the main sowing process, without increasing the complexity of the main process, and is easy to maintain. It provides the hardware foundation for upgrading from "open-loop control" to "closed-loop feedback control." For example, when multiple holes are continuously detected to have insufficient material dispensed, an automatic alarm can be triggered or the upstream feeding speed can be adjusted.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precise soybean hill-planting quantitative control device, comprising a planting frame (1) and a control platform (4), wherein a support seat (11) is provided on the planting frame (1), a planting bracket (3) is mounted on the support seat (11), a material hopper (31) is mounted on the planting bracket (3), and a discharge device (32) and a guide pipe (33) installed on the discharge device (32) are provided at the bottom of the material hopper (31); characterized in that, The control platform (4) has a fixing bolt (41) and a seeding tube (42) installed on the fixing bolt (41) along its side surface. The top input end of the seeding tube (42) is provided with a quantitative control frame (5). The bottom of the support base (11) is provided with a turnover bracket (2), which includes an upper turnover channel frame (21) and a lower turnover channel frame (22). The upper turnover channel frame (21) and the lower turnover channel frame (22) are connected in a zigzag structure. The feed end of the upper turnover channel frame (21) is connected to the guide pipe (33), and the discharge end of the lower turnover channel frame (22) is connected to the quantitative control machine frame (5). The control platform (4) is also provided with an installation box (43), and the installation box (43) is provided with an adjustment cylinder (6), a cylinder adjustment component (7) and a frame adjustment component (8). The pushing end of the adjustment cylinder (6) extends into the frame of the quantitative control frame (5). The cylinder adjustment component (7) is used to drive the adjustment cylinder (6) to move in order to control the size of the temporary storage area of ​​the quantitative control frame (5). The frame adjustment component (8) is used to control the opening and closing of the feeding of the quantitative control frame (5). The main body of the quantitative control frame (5) is a frame (51), and a temporary storage area (52) is provided inside the frame (51). A limit sleeve (53) is installed on the frame (51). The regulating cylinder (6) includes an adjusting push rod (63), which is limited to the limit sleeve (53). The length of the space of the temporary storage area (52) is controlled by the extension and retraction distance of the end of the adjusting push rod (63). The frame (51) is provided with a sliding guide rail (55) on its side edge, and a feeding baffle (54) that can slide along the sliding guide rail (55) is provided at the bottom of the frame (51). The feeding baffle (54) is provided with an outer connecting ring (56) at its end. The frame adjusting component (8) is connected to the outer connecting ring (56) to control the opening and closing of the feeding baffle (54). After the feeding baffle (54) opens and closes, soybeans fall into the channel of the seeding cylinder (42) in sequence. When the feeding baffle (54) is opened, the adjusting push rod (63) will be pushed forward slowly to push the soybeans down and close the space of the temporary storage area (52) to prevent the soybeans in the next turnover channel frame (22) from sliding down.

2. The soybean precision hill-planting quantitative control device according to claim 1, characterized in that, The support seat (11) is provided with a frame connecting frame (12) for connecting the traction source. The two ends of the support seat (11) are provided with side brackets (13) and support wheels (14) installed at the bottom of the side brackets (13).

3. The soybean precision hill-planting quantitative control device according to claim 1, characterized in that, The top of the upper turnover channel frame (21) is welded to the support base (11) and located directly below the guide pipe (33). The bottom of the turnover bracket (2) is provided with a support rod (23), and a height limit baffle (24) is installed on the support rod (23). The height limit baffle (24) is located above the channel of the lower turnover channel frame (22).

4. The soybean precision hill-planting quantitative control device according to claim 1, characterized in that, The adjusting cylinder (6) includes a cylinder base (61), a fixed cylinder (62) installed on the cylinder base (61), and an adjusting push rod (63) telescopically installed in the fixed cylinder (62). The cylinder base (61) is fixed on the mounting box (43).

5. The soybean precision hill-planting quantitative control device according to claim 4, characterized in that, The barrel adjusting component (7) includes an adjusting electric shaft (71) installed on the mounting box (43), a transmission bolt (72) installed on the shaft end of the adjusting electric shaft (71), and an adjusting connecting rod (73) installed on the transmission bolt (72). A push rod connecting sleeve (74) is installed on the rod end of the adjusting connecting rod (73), and the push rod connecting sleeve (74) is fixed on the adjusting push rod (63).

6. The soybean precision hill-planting quantitative control device according to claim 1, characterized in that, The frame adjustment component (8) includes a control shaft (81) mounted on the mounting box (43) and a swing block (82) mounted on the shaft end of the control shaft (81). An angle fine-tuning bolt (83) is provided on the block body of the swing block (82). A control link (84) is mounted on the angle fine-tuning bolt (83) through a movable bolt. A pull bolt (85) is provided at the rod end of the control link (84). The pull bolt (85) is connected to the outer connecting ring (56) of the baffle.

7. A precise soybean hill-planting quantitative control device according to any one of claims 1 to 6, characterized in that, The discharge end of the lower turnover channel frame (22) is provided with a metering component (9). The metering component (9) includes a metering frame (91) and an induction spring (93) set in the metering frame (91). The side edge of the metering frame (91) is movably installed through a swing shaft (92).

8. The soybean precision hill-planting quantitative control device according to claim 7, characterized in that, The metering component (9) also includes a metering mounting base (97) fixedly installed on the limiting sleeve (53). A pressure metering cylinder (96) is installed on the metering mounting base (97) by means of a folding bolt. A sensing rod (95) is provided on the cylinder body of the pressure metering cylinder (96). The sensing rod (95) is connected to the metering frame (91) by means of a transmission connecting bolt (94). When each soybean falls, it will squeeze the sensing spring (93). The elastic reaction force of the sensing spring (93) will cause the swing shaft (92) to swing, thereby driving the extension and retraction of the sensing rod (95). The pressure metering cylinder (96) senses the change in internal pressure to know the number of times the soybean falls.

9. The soybean precision hill-planting quantitative control device according to claim 1, characterized in that, The advancing speed of the adjusting push rod (63) is coordinated with the opening and closing speed of the feeding baffle (54) to ensure that the soybeans in the temporary storage area (52) are completely pushed out and the new soybean flow is reliably blocked during a single feeding process.

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