Deeply-buried seeding device

Abstract

The invention provides a deep-buried seeding device which comprises a conical shell, and a conical plate used for breaking soil is fixedly connected to the conical shell; a conical shell is detachably connected to the bottom of the material guiding shell, soil breaking plates used for assisting in soil breaking are fixedly arranged on the two sides of the material guiding shell, the soil breaking plates and the conical plates are arranged in a cross-shaped staggered mode, a precision adjusting assembly used for controlling the seeding depth is arranged on the material guiding shell, and a seeding rate assembly used for adjusting and controlling the seeding rate is arranged on the top of the material guiding shell; the precision adjusting assembly comprises an upper depth control piece and a lower depth control piece which are slidably arranged on the outer wall of the material guide shell at intervals, a guide rod is arranged between the upper depth control piece and the lower depth control piece, and the upper depth control piece is used for jacking the lower depth control piece so as to adjust the seeding depth. The device has the advantages that sowing is accurate and controllable; automatic resetting and sealing leakage prevention are realized; the operation is convenient and labor-saving; and the maintenance is simple.

Description

Technical Field

[0001] This invention relates to the field of seed sowing, and in particular to a deep-burying sowing device. Background Technology

[0002] Seeding devices are agricultural equipment used to achieve mechanized sowing. They are widely used in the cultivation of crops such as grains, vegetables, and forage grasses, significantly improving sowing precision and efficiency, reducing manual labor, and ensuring uniform seedling emergence. They are an indispensable key piece of equipment in modern agricultural production.

[0003] Among related technologies, a search revealed CN206350312U_ describes a device for deep pit seeding. This device consists of a seed storage mechanism and a soil-drilling mechanism. The storage chamber is equipped with a discharge port and a soil-avoiding baffle. The drill bit is conical, with a sliding connecting cover mounted on it. When pressed down, the connecting cover closes the discharge port to prevent seeds from falling out prematurely; after drilling to a predetermined depth, it is lifted, causing the connecting cover to slide down relative to the ground, opening the discharge port, and allowing the seeds to slide into the hole along the inclined cover. A tension spring ensures that the discharge port remains closed when there is no external force, and the soil-avoiding baffle prevents soil from entering the storage chamber.

[0004] However, this method has obvious drawbacks. When using the device, different operators or different soil hardness can lead to inconsistent drilling depths, which affects the seed germination rate and seedling uniformity, resulting in poor sowing depth consistency. Summary of the Invention

[0005] The main objective of this invention is to provide a deep-burying sowing structure to solve the problem of sowing depth.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a deep-burying seeding device, comprising: A conical shell, on which a conical plate for breaking ground is fixedly connected; The material guide shell has a conical shell detachably connected to its bottom. Soil-breaking plates for assisting soil breaking are fixed on both sides of the material guide shell. The soil-breaking plates and conical plates are arranged in a cross-shaped staggered pattern. The material guide shell is equipped with a precision adjustment component for controlling the sowing depth, and the top of the material guide shell is equipped with a sowing amount component for adjusting the sowing amount. The precision adjustment component includes an upper depth control component and a lower depth control component that are slidably disposed on the outer wall of the material guide housing. A guide rod is provided between the upper depth control component and the lower depth control component. The upper depth control component is used to lift the lower depth control component to adjust the sowing depth.

[0007] In the preferred embodiment, two seeding holes are inclinedly opened at the bottom of the conical shell, and first inclined blades are provided on both sides of the bottom surface of the conical plate. The bottom end of the guide shell is threadedly connected to the conical shell.

[0008] In the preferred embodiment, the outer wall of the material guide shell is provided with a rectangular hole, the bottom of the soil breaking plate is provided with a second inclined blade, a foot pedal is fixedly provided in the middle of the material guide shell, and the top is detachably connected to a seeding component and a seed bucket.

[0009] In the preferred embodiment, the upper depth control component includes a precision plate, and the lower depth control component includes an adjustment plate. The adjustment plate is located at the position corresponding to the seeding hole of the conical shell. A first spring is sleeved on the guide rod. The upper end of the first spring abuts against the foot pedal plate, and the lower end abuts against the adjustment plate. The guide rod moves through the through hole provided in the foot pedal plate.

[0010] In the preferred embodiment, the precision adjustment component further includes a threaded post screwed into the threaded hole of the scale plate. Each scale plate has multiple threaded holes spaced apart. The threaded post is used to hold the precision plate and assist in adjusting the seeding depth. Rubber sleeves are fitted at both ends of the threaded post.

[0011] In the preferred embodiment, the seeding assembly includes a seeding ball fixedly connected to one end of a rotating column, the seeding ball having a seeding groove, and a connecting rod sleeved at the other end of the rotating column off-center via a second bearing.

[0012] In a preferred embodiment, the seeding assembly further includes a connecting column, which has an axially oriented feeding hole and annular grooves on both sides for accommodating seed balls. The connecting column also has a radially oriented connecting hole, and the connecting rod is rotatably connected to the connecting column via a first bearing located in the connecting hole. In addition, the inner wall of the conical shell is provided with a plugging component, and the top of the plugging component is provided with a lifting rod. The connecting rod and the lifting rod are detachably connected to the recovery adjustment component.

[0013] In the preferred embodiment, the adjusting plate has a cross-shaped first guide groove and a first round hole in the middle. The adjusting plate abuts against the ground and compresses the first spring. The conical plate and the soil-breaking plate can pass through the first guide groove respectively, and the material guide shell passes through the first round hole.

[0014] In the preferred embodiment, the precision plate is located on top of the foot pedal, a second circular hole is provided in the middle of the precision plate, and second guide grooves are provided on both sides of the second circular hole. The adjusting plate lifts the precision plate and passes through the guide housing through the second circular hole, and the scale plate passes through the second guide groove.

[0015] In the preferred embodiment, the recovery adjustment assembly includes a pin that is movably inserted into the connecting rod and the lifting rod on one side, and a pin that is movably connected to the adjustment rod on the other side. An adjustment handle is fixedly provided at the other end of the adjustment rod, and a handle is movably hinged to one end of the adjustment handle. A second spring is fixedly provided at the included angle between the adjustment handle and the handle.

[0016] The beneficial effects of the deep-burying seeding device of the present invention are as follows: 1. Precise and controllable sowing: The sowing ball with seed metering groove works in conjunction with the depth adjustment component to achieve precise control of both sowing quantity and sowing depth; 2. Automatic reset and leak-proof sealing: The plugging component is linked with the lifting rod to automatically seal the seeding hole when not in operation, preventing seed leakage or soil from entering; the reset adjustment component ensures reliable return to its original position. 3. Easy and labor-saving operation: The foot pedal combined with the spring cushioning system makes depth adjustment intuitive and labor-saving, adapting to different terrains and agronomic requirements; 4. Simple maintenance: Each functional component is independent and detachable, making cleaning, replacement or repair convenient and extending the service life of the equipment. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is the present invention. Figure 1 Structural diagram of A in the middle; Figure 3 This is a structural diagram of the recovery adjustment component and the seeding quantity component of the present invention; Figure 4 This is the present invention. Figure 3 Structural diagram of B in the middle; Figure 5 This is a cross-sectional view of the material guiding shell of the present invention; Figure 6 This is the present invention. Figure 5 Structural diagram of C; Figure 7 This is the present invention. Figure 5 Structural diagram of D in the middle; Figure 8 This is a structural diagram of the conical shell of the present invention; Figure 9 This is a structural diagram of the precision adjustment component of the present invention; Figure 10 This is a structural diagram of the seeding quantity component of the present invention; Figure 11 This is a cross-sectional view of the seeding quantity component of the present invention.

[0018] In the diagram: 1. Conical shell; 11. Seeding hole; 12. Conical plate; 120. First inclined blade; 2. Material guide shell; 21. Rectangular hole; 22. Soil-breaking plate; 220. Second inclined blade; 23. Foot pedal; 24. First flange; 25. Windproof plate; 3. Precision adjustment assembly; 31. Adjustment plate; 310. First round hole; 311. First guide groove; 32. Precision plate; 320. Second round hole; 321. Second guide groove; 33. Scale plate; 330. Threaded hole; 34. Threaded post; 340. 35. Rubber sleeve; 36. First spring; 4. Guide rod; 5. Seeding assembly; 67. Seeding ball; 8. Seeding groove; 9. Rotating column; 10. Connecting rod; 11. First bearing; 12. Second bearing; 13. Connecting column; 14. Feeding hole; 15. Annular groove; 16. Connecting hole; 17. Handle; 18. Resilience adjustment assembly; 19. Pin; 20. Adjusting handle; 11. Second spring; 22. Adjusting rod; 33. Lifting rod; 44. Plug; 5. Seed bucket; 64. Second flange. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0020] Example 1 Embodiment 1 of this application provides a deep-burying seeding device.

[0021] refer to Figure 1 and Figure 2 The front end of the conical shell 1 is fixedly connected to a conical plate 12 for breaking soil and opening trenches. Its sharp structure facilitates soil penetration. The bottom of the guide shell 2 is detachably connected to the conical shell 1 for easy maintenance and replacement. Symmetrical soil-breaking plates 22 are arranged on both sides of the guide shell 2 to assist in breaking soil and widening the trench, improving work efficiency. Notably, the soil-breaking plates 22 and the conical plates 12 are arranged in a cross pattern, enhancing the overall soil-breaking capacity while avoiding structural interference. The guide shell 2 integrates a precision adjustment component 3 for precisely controlling the sowing depth. This precision adjustment component 3 includes an upper depth control component and a lower depth control component slidably mounted on the outer wall of the guide shell 2. These two components are connected by a guide rod 36, forming a linkage structure. Threaded posts 34 are provided on both sides of the guide shell 2 for progressively adjusting the sowing depth. When the lower depth control component is pushed upwards, it drives the upper depth control component to move synchronously and abut against the threaded posts 34, thereby achieving precise adjustment of the sowing depth. In addition, the top of the feed guide shell 2 is equipped with a seeding unit 4, which can flexibly adjust the seed dispensing amount according to crop type and agronomic requirements to ensure uniform and efficient sowing. The entire device has a compact structure and high functional integration, making it suitable for various farmland operation scenarios.

[0022] refer to Figure 3 and Figure 4The conical shell 1 has two inclined seeding holes 11 at its bottom, with an optimized inclination angle to facilitate smooth seed sliding and precise placement into the prepared seed furrows, improving seeding consistency. On both sides of the bottom surface of the conical plate 12 fixedly connected to the front end of the conical shell 1, there are first inclined blades 120. These blades are sharp and streamlined, effectively reducing soil penetration resistance and improving soil breaking efficiency. Furthermore, the bottom end of the guide shell 2 is detachably connected to the conical shell 1 via threads, facilitating assembly and replacement, enhancing the overall sealing and stability of the structure, ensuring no loosening or seed leakage during operation, and improving the reliability and ease of maintenance of the entire machine.

[0023] refer to Figure 4 The precision adjustment component 3 also includes a scale plate 33 with multiple threaded holes 330 spaced along its length, used to engage with threaded posts 34 to achieve multi-level depth adjustment. After the threaded post 34 is screwed into the corresponding threaded hole 330, its front end rests against the top surface of the precision plate 32. By changing the contact position, the sowing depth can be fine-tuned, improving operational accuracy. To enhance the operating feel and prevent wear or slippage caused by direct contact between components, both ends of the threaded post 34 are fitted with rubber sleeves 340, which not only provide cushioning and shock absorption but also effectively prevent slippage, reduce noise, and improve the overall durability and stability of the structure. This design makes depth adjustment more intuitive and precise, allowing users to quickly set the appropriate sowing depth based on soil conditions and crop requirements.

[0024] refer to Figure 5 and Figure 6 The upper depth control component mainly includes a precision plate 32, which is used to link with external operating components to achieve precise control of the sowing depth. The lower depth control component includes an adjustment plate 31, whose position precisely corresponds to the sowing hole 11 at the bottom of the conical shell 1, ensuring that the normal falling path of the seeds is not affected during adjustment. A guide rod 36 runs through the entire adjustment structure, and a first spring 35 is sleeved on it. The upper end of the spring abuts against the bottom surface of the foot pedal 23 set in the middle of the guide shell 2, and the lower end abuts against the top of the adjustment plate 31, forming an elastic support system. When the operator steps on the foot pedal 23, the pressure is transmitted to the bottom surface of the foot pedal 23 through the adjustment plate 31 and compresses the first spring 35, thereby driving the conical shell 1 to move downward as a whole, realizing dynamic adjustment of the sowing depth. After being released, the first spring 35 returns to its initial state. In addition, the guide rod 36 is movably inserted into the through hole opened on the foot pedal 23, which not only ensures smooth movement but also maintains structural stability, making the depth adjustment more sensitive and reliable.

[0025] refer to Figure 7The outer wall of the feed guide shell 2 has rectangular holes 21, and an arc-shaped windproof plate 2 is fixedly installed on the feed guide shell 2 to prevent seeds from leaking out due to wind during the fall. The soil-breaking plates 22 fixed on both sides of the feed guide shell 2 have a second inclined blade 220 at the bottom. The angle of this blade is optimized to effectively cut into the soil, reduce operating resistance, and work in conjunction with the conical plate 12 to achieve efficient ditching. A foot pedal 23 is integrally formed or welded to the middle of the feed guide shell 2, allowing operators to apply pressure during field operations and enhance the stability of the soil penetration depth. The top of the shell is connected to the seeding assembly 4 and the seed bucket 9 via a detachable structure, which not only facilitates seed addition and device cleaning but also allows for flexible replacement of different specifications of the seeding adjustment mechanism according to the crop type, improving the adaptability and operating efficiency of the equipment.

[0026] refer to Figure 9 The adjusting plate 31, a key component of the precision adjustment assembly 3, features a carefully designed cross-shaped channel structure in its central area, including two perpendicularly intersecting first guide channels 311 and a first circular hole 310 at the center of the cross intersection. During the sowing operation, the bottom of the adjusting plate 31 directly contacts and supports the ground, moving upwards as the machine presses down, compressing the first spring 35 sleeved on the guide rod 36, thereby achieving adaptive adjustment and buffering of the sowing depth. The conical plate 12 on the conical shell 1 and the soil-breaking plates 22 on both sides of the material guide shell 2 can smoothly pass through the first guide channels 311 in their respective directions when breaking through the soil, ensuring that the soil-breaking action is unimpeded and avoiding structural interference. At the same time, the main body of the material guide shell 2 precisely passes through the first circular hole 310 in the center of the adjusting plate 31, forming a stable interlocking relationship, which maintains the coaxiality of the overall structure and allows the adjusting plate 31 to float independently in the vertical direction, flexibly responding to different terrain changes. This ingenious layout not only improves the device's maneuverability and stability, but also enhances its adaptability to complex farmland environments and ensures consistent sowing.

[0027] refer to Figure 9The precision plate 32 is located on top of the foot pedal 23, serving as the upper control element in the depth adjustment system. It receives the lifting force from the lower adjustment mechanism and achieves precise positioning. A second circular hole 320 is located in the center of the plate, and second guide grooves 321 are symmetrically arranged on both sides, echoing the overall layout of the lower adjustment plate 31. During operation, when the adjustment plate 31 is lifted upwards by the ground reaction force, it pushes the precision plate 32 upwards synchronously, thereby compressing the first spring 35 and driving the entire depth adjustment assembly. At this time, the main body of the guide housing 2 can smoothly pass through the second circular hole 320 in the center of the precision plate 32, ensuring unimpeded structural movement. Simultaneously, the scale plate 33, fixed to the outer wall of the guide housing 2, passes precisely into the second guide groove 321, limiting the lateral displacement of the precision plate 32 while allowing it to slide smoothly in the vertical direction. This design not only ensures the linearity and stability of the sowing depth adjustment but also achieves visual gear positioning through the cooperation of the guide grooves and the scale plate, facilitating users to quickly and accurately set the sowing depth according to agronomic needs.

[0028] refer to Figure 10 The seeding assembly 4 includes a seed ball 41 fixedly connected to one end of a rotating column 42. A seed metering groove 410 is formed on the outer circumference of the ball, the volume of which determines the number of seeds sown per batch. The sowing quantity can be flexibly adjusted by replacing seed balls 41 of different sizes. The other end of the rotating column 42 is rotatably connected to a connecting rod 43 via a second bearing 45 at an off-center position, forming an eccentric drive structure. When the connecting rod 43 is subjected to external force to swing or rotate, it causes the rotating column 42 and the seed ball 41 to rotate intermittently, causing the seed metering groove 410 to periodically align with the seed channel, achieving quantitative and uniform sowing. This ingenious design ensures stable operation and effectively guarantees sowing accuracy and operational continuity.

[0029] refer to Figure 6 and Figure 11The seeding assembly 4 also includes a connecting column 46, which has an axially oriented feeding hole 460 inside, serving as a channel for seeds to enter the conical shell 1 from the seed container 9. On both sides of the feeding hole 460, the inner wall of the connecting column 46 has annular grooves 461 for precisely accommodating the seeding ball 41, ensuring stable positioning during rotation and preventing displacement that could affect seeding accuracy. The connecting column 46 also has a radially oriented connecting hole 462, through which the connecting rod 43 is rotatably connected to the connecting column 46 via a first bearing 44 located within the hole, ensuring smooth transmission and reducing frictional loss. Furthermore, the inner wall of the conical shell 1 has a plugging component 8 for sealing the seeding hole 11 in the non-seeding state, preventing seed leakage or soil backflow; the top of the plugging component 8 is connected to a lifting rod 7, which can be lifted by external force to open the seeding channel. The connecting rod 43 and the lifting rod 7 are detachably connected to the recovery adjustment component 6. This component integrates elastic reset and stroke adjustment functions. It automatically returns to its original position after completing one sowing action. At the same time, it can flexibly adjust the action amplitude and response force according to different operation requirements, thereby improving the adaptability, reliability and ease of operation of the whole machine.

[0030] Example 2 refer to Figure 6 The conical shell 1 is the core component at the front end of the sowing device, mainly used for soil penetration and seed guidance. It has two sowing holes 11 at its bottom, allowing seeds to fall precisely into the furrow. A plugging component 8 is installed on the inner wall to seal the sowing holes 11 when not in operation, preventing seed leakage or soil entry. A lifting rod 7 is connected to the top of the plugging component 8, and its raising and lowering are controlled by a restoring adjustment component 6. A conical plate 12 is fixedly connected to the conical shell 1 for breaking the soil and creating furrows. The bottom surface of the conical plate 12 has first inclined blades 120 on both sides to effectively reduce soil penetration resistance. The plugging component 8 consists of two conical bodies; the lower conical body prevents soil from entering the conical shell 1 through the sowing holes 11, while the upper conical body prevents seeds from being left inside the conical shell 1. The conical shell 1 is detachably connected to the bottom of the guide shell 2 via a threaded connection, facilitating maintenance and replacement. The overall structure is compact and high-strength, combining soil breaking, seed guidance, and sealing functions, providing a reliable foundation for efficient and precise sowing.

[0031] refer to Figure 5 and Figure 7The recovery adjustment component 6 is the core mechanism for resetting the sowing action and adjusting the operating feel. Its structure is ingeniously designed and highly integrated. The recovery adjustment component 6 includes a pin 60, one side of which is movably inserted into the corresponding holes of the connecting rod 43 and the lifting rod 7, enabling linkage with the sowing quantity component and the hole-blocking control mechanism; the other side is connected to the adjustment rod 63 via a hinge or sliding mechanism, ensuring smooth and reliable force transmission. The other end of the adjustment rod 63 is fixedly equipped with an adjustment handle 61, allowing the operator to control the rotation of the sowing ball or the opening and closing of the hole-blocking component by manipulating the handle 61. One end of the adjustment handle 61 is hinged to the handle 5, forming a swingable operating handle structure; a second spring 62 is located at the angle between the adjustment handle 61 and the handle 5. This spring is always in a pre-tensioned state to provide a rebound force, ensuring that the system automatically resets to its initial position after each operation.

[0032] refer to Figure 10 and Figure 11 Because the seeding unit 4 adopts a modular design, its bottom is detachably connected to the material guide housing 2 via the first flange 24, and its top is assembled with the seed tank 9 via the second flange 91. The overall connection is stable and easy to disassemble and assemble. Therefore, in actual operation, if it is necessary to adjust the seeding rate or adapt to different crop seeds, the user does not need to make complicated adjustments to the whole machine. They only need to replace the entire seeding unit 4 with the corresponding specification component, which greatly improves the ease of operation, work efficiency, and the equipment's versatility.

[0033] Example 3 refer to Figure 1 To balance strength and lightweight design, the key load-bearing and moving parts of the seeding device, including the conical shell 1, conical plate 12, soil-breaking plate 22, first spring 35, second spring 62, first bearing 44, second bearing 45, lifting rod 7, plugging device 8, and adjusting rod 63, are all made of metal materials (such as stainless steel or high-strength alloy steel) to ensure wear resistance, impact resistance, and long-term operational reliability. Other non-load-bearing structural components, such as the feed guide shell 2, seed bucket 9, handle 5, flange, and various connecting covers, are made of engineering plastics. This significantly reduces the overall weight while maintaining structural rigidity, making it easier to carry and operate in the field and improving the user experience. The seed bucket 9 is made of transparent plastic material for easy observation of seed consumption.

[0034] refer to Figure 1 If the selected seeds are particularly small, they may slide down the surface of the conical plate 12 from the sowing hole 11, resulting in excessively deep sowing and affecting sowing accuracy. To avoid this problem, when assembling this structure, the lower end of the adjusting plate 31 should be adjusted to be flush with the bottom of the conical plate 12, thereby effectively limiting the soil penetration depth of the conical shell 1, ensuring that the tiny seeds fall accurately into the predetermined seed furrow position, and guaranteeing sowing uniformity and depth consistency.

[0035] In summary, the implementation principle of this embodiment is as follows: The sowing device adopts a modular and adjustable structural design, featuring high efficiency, precision, and easy maintenance. The front end of the conical shell 1 is equipped with a conical plate 12 with a first inclined blade 120 for breaking the soil. Two sowing holes 11 are inclined at the bottom, and a plugging device 8 controlled by a lifting rod 7 is built-in to prevent missed seeds or soil backflow. It is connected to the bottom of the guide shell 2 via threads for easy disassembly and replacement. The guide shell 2 has soil-breaking plates 22 with second inclined blades 220 on both sides, arranged in a cross pattern with the conical plates 12 to enhance soil-breaking ability. A foot pedal 23 is provided in the middle, and the top is connected to the seed bucket 9 via a second flange 91, while the bottom is connected to the sowing quantity component 4 via a first flange 24. The sowing quantity component 4 includes a sowing ball 41 with a seed metering groove 410, which achieves quantitative sowing through eccentric rotation, and the entire assembly can be quickly replaced to adapt to different crops. The precision adjustment component 3 consists of an adjustment plate 31, a precision plate 32, a scale plate 33, and a spring guide rod system, which, in conjunction with the foot pedal, enables stepless adjustment of the sowing depth. The reset adjustment component 6 is linked to the connecting rod 43 and the lifting rod 7 to ensure reliable resetting of the action. The machine has a compact structure, flexible adjustment, and strong adaptability, making it suitable for locations where automation is inconvenient, such as shrublands and sandy areas.

[0036] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A deep-burying seeding device, characterized in that it comprises: A conical shell (1) is fixedly connected to a conical plate (12) for breaking ground. The material guide shell (2) has a conical shell (1) detachably connected to its bottom. The material guide shell (2) has soil breaking plates (22) fixed on both sides for assisting soil breaking. The soil breaking plates (22) and the conical plates (12) are arranged in a cross-shaped staggered manner. The material guide shell (2) has a precision adjustment component (3) for controlling the sowing depth. The material guide shell (2) has a sowing amount component (4) for adjusting the sowing amount at its top. The precision adjustment component (3) includes an upper depth control component and a lower depth control component that are slidably disposed on the outer wall of the material guide housing (2) at intervals. A guide rod (36) is provided between the upper depth control component and the lower depth control component. The upper depth control component is used to lift the lower depth control component to adjust the sowing depth.

2. The deep-burying seeding device according to claim 1, characterized in that, The conical shell (1) has two sowing holes (11) at the bottom, and the conical plate (12) has a first inclined blade (120) on both sides of the bottom surface. The bottom end of the guide shell (2) is threadedly connected to the conical shell (1).

3. The deep-burying seeding device according to claim 1, characterized in that, The outer wall of the material guide shell (2) is provided with a rectangular hole (21), the bottom of the soil breaking plate (22) is provided with a second inclined blade (220), the middle of the material guide shell (2) is fixedly provided with a foot pedal (23), and the top is detachably connected with a seeding component (4) and a seed bucket (9).

4. The deep-burying seeding device according to claim 1, characterized in that, The upper depth control component includes a precision plate (32), and the lower depth control component includes an adjustment plate (31). The adjustment plate (31) is located at the corresponding position of the seeding hole (11) of the conical shell (1). A first spring (35) is sleeved on the guide rod (36). The upper end of the first spring (35) abuts against the foot pedal (23) and the lower end abuts against the adjustment plate (31). The guide rod (36) moves through the through hole provided in the foot pedal (23).

5. The deep-burying seeding device according to claim 1, characterized in that, The precision adjustment component (3) also includes a threaded post (34) screwed into the threaded hole (330) of the scale plate (33). Each scale plate (33) has multiple threaded holes (330) spaced apart. The threaded post (34) is used to hold the precision plate (32) and assist in adjusting the sowing depth. Rubber sleeves (340) are fitted at both ends of the threaded post (34).

6. The deep-burying seeding device according to claim 1, characterized in that, The seeding assembly (4) includes a seed ball (41) fixedly connected to one end of a rotating column (42), and a seeding groove (410) is provided on the seed ball (41). The other end of the rotating column (42) is offset from the center and a connecting rod (43) is sleeved on it through a second bearing (45).

7. The deep-burying seeding device according to claim 1, characterized in that, The seeding assembly (4) also includes a connecting column (46), which has an axially oriented feeding hole (460), and an annular groove (461) for accommodating seed balls (41) is provided on both sides of the feeding hole (460). The connecting column (46) has a radially oriented connecting hole (462), and the connecting rod (43) is rotatably connected to the connecting column (46) through a first bearing (44) provided in the connecting hole (462). In addition, the inner wall of the conical shell (1) is provided with a plugging part (8), the top of the plugging part (8) is provided with a lifting rod (7), and the connecting rod (43) and the lifting rod (7) are respectively detachably connected to the recovery adjustment component (6). The recovery adjustment assembly (6) includes a pin (60) which is movably inserted into the connecting rod (43) and the lifting rod (7) on one side, and is movably connected to the adjustment rod (63) on the other side. The other end of the adjustment rod (63) is fixedly provided with an adjustment handle (61). One end of the adjustment handle (61) is movably hinged to a handle (5). A second spring (62) is fixedly provided at the included angle between the adjustment handle (61) and the handle (5).

8. A deep-burying seeding device according to any one of claims 1-4, characterized in that, The adjustment plate (31) has a cross-shaped first guide groove (311) and a first round hole (310) in the middle. The adjustment plate (31) abuts against the ground and compresses the first spring (35). The conical plate (12) and the soil-breaking plate (22) can pass through the first guide groove (311) respectively, and the material guide shell (2) passes through the first round hole (310).

9. A deep-burying seeding device according to any one of claims 1-5, characterized in that, The precision plate (32) is located on top of the foot pedal (23). A second circular hole (320) is provided in the middle of the precision plate (32). A second guide groove (321) is provided on both sides of the second circular hole (320). The adjusting plate (31) lifts the precision plate (32) and passes through the guide housing (2) through the second circular hole (320). The scale plate (33) passes through the second guide groove (321).

10. A method of using a seeding device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1: The front end of the conical shell (1) is provided with a conical plate (12) with a first inclined blade (120). The conical plate (12) is used to break the soil. The bottom of the conical shell (1) is inclined with two sowing holes (11) and a plugging part (8) controlled by the lifting rod (7) is built in. The conical shell (1) is threaded to the bottom end of the guide shell (2). The top of the seed bucket (9) is provided with a handle (5) and a recovery adjustment component (6), and the bottom is provided with a guide shell (2). S2: The material guide shell (2) is provided with soil breaking plates (22) with second inclined blades (220) on both sides. The soil breaking plates (22) facilitate the material guide shell (2) to penetrate into the soil. The soil breaking plates (22) and the conical plates (12) are arranged in a cross pattern. The material guide shell (2) is provided with a foot pedal (23) in the middle. When the operator steps on the foot pedal (23), the conical plates (12) and the soil breaking plates (22) break the soil. The adjusting plate (31) supports the ground and the linkage precision plate (32) supports the threaded column (34) on the scale plate (33) to achieve precise seeding depth. S3: The seeding quantity component (4) includes a seeding ball (41) with a seeding groove (410), which realizes quantitative seeding through eccentric rotation. The precision adjustment component (3) consists of an adjustment plate (31), a precision plate (32), a scale plate (33) and a spring guide rod system, which, together with the foot pedal (23), realizes stepless adjustment of the seeding depth. S4: The adjusting handle (61) and the connecting rod (43) drive the seed ball (41) to rotate. At this time, the seed falls to the hole-blocking part (8). Then, the adjusting handle (61) and the lifting rod (7) lift the hole-blocking part (8) so that the seed falls from the seed hole (11).

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