A cereal seeding device

CN224596987UActive Publication Date: 2026-08-07ANHUI FEISONG MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI FEISONG MASCH TECH CO LTD
Filing Date
2025-09-18
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0002]在小麦谷类作物种植过程中,为保障种子萌发及幼苗生长初期的养分供给,种肥同播已成为重要种植方式,且需精准控制小麦种子播种量与肥料施用量以适配不同土壤肥力及种植密度要求,同时需将肥料置于种子侧下方,避免肥料直接接触种子引发烧种,还能确保根系快速吸收养分;但现有谷物播种设备存在明显缺陷,部分设备无法同时实现种子量与肥料量的精准调控,易出现播种量或施肥量不均,导致小麦生长不齐、产量受影响

Benefits of technology

[0017] This invention achieves synchronous sowing of seeds and fertilizer by using a feeding assembly and a metering mechanism in synergy, and by using a driving assembly to rotate the metering mechanism within the feeding assembly. The metering mechanism's adjusting component works in conjunction with the metering disc to adjust the position of the metering plate in the capacity trough (for holding seeds or fertilizer), thereby changing the amount of seeds and fertilizer dispensed each time. This results in synchronous and precise sowing of seeds and fertilizer, improving planting efficiency and stabilizing crop yield.

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Abstract

The utility model discloses a kind of grain seeding equipment, it is related to grain seeding technical field.The utility model includes support frame, plough frame, further include material conveying subassembly, ration mechanism and drive assembly;The material conveying subassembly includes a plurality of seed storage feed tank one, a plurality of fertilizer storage feed tank two, ration mechanism is rotatably installed in the feed tank one, feed tank two, a plurality of feed tank one and a plurality of feed tank two whole linear equidistance and one-to-one corresponding fixedly connected on the upper portion both sides of support frame, the feed tank one, feed tank two and plough frame between are all equipped with the feeding hose for conveying seed or fertilizer, transmission connection between ration mechanism and drive assembly.The utility model is driven ration mechanism rotation by material conveying subassembly and ration mechanism synergistic effect, adjusting component in ration mechanism and ration disc synergistic effect adjust the position of ration plate in capacity groove, to change the amount of seed and fertilizer of each time drop.
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Description

Technical Field

[0001] This utility model belongs to the field of grain sowing technology, and in particular relates to a grain sowing device. Background Technology

[0002] In the cultivation of wheat and other cereal crops, simultaneous sowing of seeds and fertilizer has become an important planting method to ensure nutrient supply for seed germination and early seedling growth. It is necessary to precisely control the amount of wheat seeds sown and the amount of fertilizer applied to adapt to different soil fertility and planting density requirements. At the same time, fertilizer should be placed below and to the side of the seeds to avoid direct contact with the seeds and causing seed burn, and to ensure that the roots can quickly absorb nutrients. However, existing cereal sowing equipment has obvious defects. Some equipment cannot achieve precise control of the amount of seeds and fertilizer at the same time, which easily leads to uneven sowing or fertilization, resulting in uneven wheat growth and affecting yield.

[0003] Therefore, a grain sowing device is proposed to solve the problem of precise control over the number of seeds and the amount of fertilizer when planting wheat, thereby achieving synchronous and precise sowing of seeds and fertilizer, and improving planting efficiency and stabilizing crop yield. Utility Model Content

[0004] The purpose of this invention is to provide a grain sowing device that, through the coordinated action of a feeding component and a metering mechanism, and simultaneously through a driving component that causes the metering mechanism to rotate within the feeding component, achieves synchronous and precise sowing of seeds and fertilizer, thereby improving planting efficiency and stabilizing crop yield.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a grain sowing device, including a support frame, a plow frame, a feeding assembly, a metering mechanism, and a drive assembly. The feeding assembly includes several feeding boxes 1 for storing seeds and several feeding boxes 2 for storing fertilizer. A metering mechanism is rotatably installed inside each of the feeding boxes 1 and 2. The feeding boxes 1 and 2 are linearly equidistant and correspondingly fixed to the upper sides of the support frame. A feeding hose for conveying seeds or fertilizer is installed between each of the feeding boxes 1 and 2 and the plow frame. The metering mechanism is connected to the drive assembly via a transmission.

[0007] The quantitative mechanism includes a quantitative disc, a quantitative plate, an adjustment component, and a mounting frame. The quantitative disc has a capacity groove on its side wall, and the quantitative plate is slidably connected in the capacity groove. The quantitative plate and the adjustment component are in movable cooperation.

[0008] As a preferred technical solution of this utility model, the support frame includes a support body and a mounting plate. The mounting plate is fixed to the upper part of the support body, and a plurality of mounting through holes are provided on both sides of the surface of the mounting plate in a linear and equidistant arrangement.

[0009] As a preferred technical solution of this utility model, the first conveying box and the second conveying box are symmetrically distributed on both sides of the surface of the mounting plate, and the first conveying box and the second conveying box correspond one to one. A circular through hole is opened on one side of the lower part of the first conveying box. An installation pipe is fixedly connected to the bottom of the first conveying box, and the installation pipe is connected to the inside of the first conveying box. At the same time, a feeding hose is fixedly connected to the lower end of the installation pipe. The second conveying box and the first conveying box have the same overall structure.

[0010] As a preferred technical solution of this utility model, the quantitative mechanism further includes an installation shaft and an installation frame. The installation shaft is fixedly connected to one end surface of the quantitative disc and rotatably connected to the feeding assembly. One end of the installation shaft is fixedly connected to a bevel gear for transmission. The other end surface of the quantitative disc is provided with an installation groove for installing the adjustment assembly and the installation frame. A movable groove is provided between the installation groove and the capacity groove. A quantitative plate is slidably arranged in the movable groove.

[0011] As a preferred embodiment of the present invention, the mounting frame includes a side frame and a top cover, and the mounting frame is fixedly connected to the front of the mounting groove.

[0012] As a preferred technical solution of this utility model, the metering plate includes a movable plate, a limiting rod and a T-shaped rod. The movable plate is fixed to one side of the upper end of the limiting rod, and the T-shaped rod is fixed to the other side of the lower end of the limiting rod. The movable plate is slidably installed in the capacity groove, and the side wall of the movable plate is in contact with the inner wall of the capacity groove. The limiting rod is slidably installed in the movable groove.

[0013] As a preferred embodiment of this utility model, the adjusting assembly further includes an adjusting disc, an adjusting worm gear, an adjusting worm, an adjusting rod, and a turntable. The adjusting disc is rotatably installed in the mounting groove. An arc-shaped through groove is formed on the surface of the adjusting disc, and a T-shaped rod is movably fitted in the arc-shaped through groove. An adjusting worm gear is fixedly connected to the center of the adjusting disc. The adjusting worm gear and the adjusting worm are driven by a worm gear transmission. A bevel gear is fixedly connected to one end of the adjusting worm. The adjusting worm is rotatably installed on the surface of the upper cover near the mounting groove. A reference disc is fixedly connected to the surface where the adjusting worm connects to the upper cover. The adjusting rod is rotatably installed inside the upper cover. A bevel gear is fixedly connected to one end of the adjusting rod, and a turntable is fixed to the other end of the adjusting rod. The bevel gear on the adjusting rod meshes with the bevel gear on the adjusting worm.

[0014] As a preferred technical solution of this utility model, the drive assembly is fixedly connected to the upper part of the support frame, and the drive assembly is located between the first conveyor box and the second conveyor box. The drive assembly includes a power box and several transmission shafts. The power box is a mature existing technology and will not be described in detail here. The several transmission shafts are linearly and equidistantly rotatably installed on both sides of the power box. One end of the transmission shaft is fixedly connected to a bevel gear. At the same time, two adjacent conveyor assemblies on the same side are symmetrically installed as a group. At this time, the mounting shafts in the same group of conveyor assemblies are symmetrical to each other. Meanwhile, the transmission shaft is located between the two mounting shafts and meshes with the two mounting shafts for transmission.

[0015] As a preferred technical solution of this utility model, the plow frame includes a main frame, several plowshares, a soil covering plate, and several fastening rings. The several plowshares are linearly and equidistantly fixed to one end of the main frame, the soil covering plate is fixed to the other end of the main frame, and the fastening rings are fixed to one side of the plowshares. The fastening rings, plowshares, and material conveying boxes one and two correspond one-to-one. The fastening rings include straight clamping tubes and bent clamping tubes, which are integrally formed and used to fix material conveying hoses with different functions: the straight clamping tube is used to clamp the material conveying hose connected to material conveying box one; the bent clamping tube is a tubular structure with a preset bending angle, and is used to clamp the material conveying hose connected to material conveying box two.

[0016] This utility model has the following beneficial effects:

[0017] This invention achieves synchronous sowing of seeds and fertilizer by using a feeding assembly and a metering mechanism in synergy, and by using a driving assembly to rotate the metering mechanism within the feeding assembly. The metering mechanism's adjusting component works in conjunction with the metering disc to adjust the position of the metering plate in the capacity trough (for holding seeds or fertilizer), thereby changing the amount of seeds and fertilizer dispensed each time. This results in synchronous and precise sowing of seeds and fertilizer, improving planting efficiency and stabilizing crop yield.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a grain sowing device according to the present invention;

[0021] Figure 2 This is a top view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the support frame and plow frame in this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the material conveying component and the metering mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the adjustment component and the material conveying component in this utility model;

[0025] Figure 6 This is a schematic diagram of the overall structure of the quantitative disc in this utility model;

[0026] Figure 7 This is a cross-sectional schematic diagram of the material conveying assembly and the metering mechanism in this utility model;

[0027] Figure 8 This is a schematic diagram of the overall structure of the quantitative plate in this utility model;

[0028] Figure 9 This is a schematic diagram of the overall structure of the adjustment component in this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Support frame; 2. Plow frame; 3. Material conveying assembly; 4. Metering mechanism; 5. Drive assembly; 6. Feeding hose; 101. Support body; 102. Mounting plate; 103. Mounting through hole; 201. Main frame; 202. Plowshare; 203. Covering plate; 204. Fastening ring; 205. Straight clamp pipe; 206. Bent clamp pipe; 301. Material conveying box one; 302. Material conveying box two; 303. Circular through hole; 304. Mounting pipe; 401. Metering disc; 402. Metering plate ; 403, Adjustment component; 404, Mounting frame; 405, Capacity slot; 406, Mounting shaft; 407, Mounting slot; 408, Movable slot; 409, Side frame; 410, Top cover; 411, Limiting rod; 412, T-shaped rod; 413, Movable plate; 414, Adjustment disc; 415, Adjusting worm gear; 416, Adjusting worm; 417, Adjusting rod; 418, Turntable; 419, Arc-shaped through slot; 420, Reference disc; 501, Power box; 502, Drive shaft. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Example 1: Please refer to Figure 1 , Figure 2 As shown, this utility model is a grain sowing device, including a support frame 1, a plow frame 2, a feeding assembly 3, a metering mechanism 4, and a drive assembly 5. The feeding assembly 3 includes several feeding boxes 301 and several feeding boxes 302. The metering mechanism 4 is rotatably installed in each of the feeding boxes 301 and 302. The feeding boxes 301 and 302 are linearly equidistant and fixed to the upper sides of the support frame 1 in a one-to-one correspondence. The feeding boxes 301 and 302 are equipped with feeding hoses 6 for conveying seeds or fertilizer between the feeding boxes 301 and 302 and the plow frame 2. The metering mechanism 4 is connected to the drive assembly 5 by transmission.

[0034] In actual use, the grower installs the entire unit on the tractor using the plow frame 2. Then, the grower places the seeds and fertilizer into the corresponding feed boxes 301 and 302, respectively. The amount of seeds and fertilizer spread is controlled by adjusting the metering mechanism 4. After controlling the amount of seeds and fertilizer, the tractor is driven to move the entire equipment. At the same time, the drive component 5 is activated to drive the metering mechanism 4 to deliver the seeds and fertilizer into the soil through the feed hose 6, achieving synchronous and precise sowing of seeds and fertilizer, improving planting efficiency and crop yield stability.

[0035] Please see Figure 1-4 As shown, the support frame 1 includes a support body 101 and a mounting plate 102. The mounting plate 102 is fixed to the upper part of the support body 101. Several mounting through holes 103 arranged linearly and equidistantly are opened on both sides of the surface of the mounting plate 102. The first conveying box 301 and the second conveying box 302 are symmetrically distributed on both sides of the surface of the mounting plate 102, and the first conveying box 301 and the second conveying box 302 correspond one-to-one. A circular through hole 303 is opened on one side of the lower part of the first conveying box 301. An installation pipe 304 is fixed to the bottom of the first conveying box 301. The installation pipe 304 is connected to the inside of the first conveying box 301. At the same time, a feeding hose 6 is fixed to the lower end of the installation pipe 304. The second conveying box 302 has the same overall structure as the first conveying box 301. The first conveying box 301 is used to store grain seeds, while the second conveying box 302 is used to store fertilizer.

[0036] Please see Figure 3 , Figure 6 , Figure 9 The quantitative mechanism 4 includes a quantitative disc 401, a quantitative plate 402, an adjustment component 403, and a mounting frame 404. The quantitative disc 401 has a capacity slot 405 for holding seeds or fertilizer on its side wall. The quantitative plate 402 is slidably connected in the capacity slot 405. The quantitative plate 402 is movably connected to the adjustment component 403. By rotating the adjustment component 403, the position of the quantitative plate 402 in the capacity slot 405 is changed, thereby changing the capacity of the quantitative mechanism 4 and controlling the amount of seeds or fertilizer dispensed each time.

[0037] Please see Figure 1 , Figure 2 and Figures 4-9The metering mechanism 4 further includes a mounting shaft 406 and a mounting frame 404. The mounting shaft 406 is fixedly connected to one end surface of the metering disc 401 and rotatably connected to the conveying assembly 3. A bevel gear for transmission is fixedly connected to one end of the mounting shaft 406. The other end surface of the metering disc 401 has a mounting groove 407 for mounting the adjusting assembly 403 and the mounting frame 404. A movable groove 408 is provided between the mounting groove 407 and the capacity groove 405. A metering plate 402 is slidably disposed in the movable groove 408. The mounting frame 404 includes a side frame 409 and a top cover 410. The mounting frame 404 is fixedly connected to one end of the mounting groove 407. The metering plate 402 is enclosed inside the mounting frame 404. The assembly includes a movable plate 413, a limiting rod 411, and a T-shaped rod 412. The movable plate 413 is fixed to one side of the upper end of the limiting rod 411, and the T-shaped rod 412 is fixed to the other side of the lower end of the limiting rod 411. The movable plate 413 is slidably installed in the capacity slot 405, and the side wall of the movable plate 413 is in contact with the inner wall of the capacity slot 405. The limiting rod 411 is slidably installed in the movable slot 408. The adjustment assembly 403 also includes an adjustment disc 414, an adjustment worm gear 415, an adjustment worm 416, an adjustment rod 417, and a turntable 418. The adjustment disc 414 is rotatably installed in the mounting slot 407, and the surface of the adjustment disc 414 has an arc-shaped through groove 419, which is movably fitted within the arc-shaped through groove 419. A T-shaped rod 412 is provided, and an adjusting worm gear 415 is fixedly connected to the center of the adjusting disc 414. The adjusting worm gear 415 and the adjusting worm 416 are connected via worm gear transmission. A bevel gear is fixedly connected to one end of the adjusting worm 416. The adjusting worm 416 is rotatably mounted on the surface of the upper cover 410 near the mounting groove 407. An adjusting rod 417 is rotatably mounted inside the upper cover 410. A reference disc 420 is fixedly connected to the surface where the adjusting worm 416 connects to the upper cover 410. A bevel gear is fixedly connected to one end of the adjusting rod 417, and a turntable 418 is fixedly connected to the other end of the adjusting rod 417. The bevel gear on the adjusting rod 417 meshes with the bevel gear on the adjusting worm 416. The drive assembly 5 is integrally fixed to... The upper part of the support frame 1 and the drive assembly 5 are located between the first conveying box 301 and the second conveying box 302. The drive assembly 5 includes a power box 501 and several transmission shafts 502. The power box 501 is a mature existing technology and will not be described in detail here. The several transmission shafts 502 are linearly and equidistantly rotatably installed on both sides of the power box 501. One end of each transmission shaft 502 is fixedly connected to a bevel gear. At the same time, two adjacent conveying assemblies 3 on the same side are symmetrically installed as a group. At this time, the mounting shafts 406 in the same group of conveying assemblies 3 are symmetrical to each other. The transmission shaft 502 is located between the two mounting shafts 406 and meshes with the two mounting shafts 406 to drive the metering mechanism 4 in the conveying assembly 3 to rotate.

[0038] In actual use, the operator uses the reference plate 420 as a reference in advance, and twists the turntable 418. The adjusting rod 417 drives the adjusting worm gear 416 to rotate, which in turn drives the adjusting worm wheel 415 to rotate synchronously with the adjusting plate 414. Since the T-shaped rod 412 is stuck in the arc-shaped through groove 419, when the adjusting plate 414 rotates, it will drive the metering plate 402 to move along the movable groove 408 through the arc-shaped through groove 419, so that the movable plate 413 slides along the depth direction of the capacity groove 405, thereby adjusting the volume of the capacity groove 405 and realizing precise control of the seed output of conveying box one 301 and the fertilizer output of conveying box two 302. Next, the drive assembly 5 is started, and the bevel gear of the drive shaft 502 meshes with the mounting shaft 406 to drive the quantitative disc 401 to rotate in the conveying assembly 3. When the capacity tank 405 rotates to align with the mounting pipe 304 at the bottom of the conveying assembly 3, the seeds or fertilizer in the capacity tank 405 will be conveyed to the feeding hose 6 through the mounting pipe 304, and then introduced into the soil by the feeding hose 6, thus realizing the synchronous and quantitative sowing of seeds and fertilizer.

[0039] Example 2: Please refer to Figures 1-3 As shown, the plow frame 2 includes a main frame 201, several plowshares 202, a soil covering plate 203, and several fastening rings 204. The plowshares 202 are linearly and equidistantly fixed to one end of the main frame 201, the soil covering plate 203 is fixed to the other end of the main frame 201, and the fastening rings 204 are fixed to one side of each plowshare 202. The fastening rings 204, plowshares 202, and feed boxes 1 and 2 correspond one-to-one, ensuring that seeds and fertilizers can be accurately conveyed from their respective feed boxes within the working area of ​​a single plowshare 202. Each fastening ring 204 includes a straight clamping tube 205 and a curved clamping tube 206, both integrally formed and used to fix different... The functional feeding hose 6: The straight clamping hose 205 is connected to the feeding hose 6 of the first feeding box 301 for storing grain seeds, allowing the seeds to be directly placed along a straight path to the bottom of the planting furrow tilled by the plowshare 202; the curved clamping hose 206 is a tubular structure with a preset bending angle, which is connected to the feeding hose 6 of the second feeding box 302 for storing fertilizer. The curved structure guides the fertilizer to a side position in the planting furrow at a set distance from the seeds. Finally, the seeds and fertilizer are covered by the covering plate 203, thereby effectively avoiding the problem of seedling burn caused by direct contact between fertilizer and seeds or too close spacing, ensuring normal seed germination and seedling growth, and improving the overall planting effect.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A grain sowing device, comprising a support frame (1) and a plow frame (2), characterized in that: It also includes a feeding assembly (3), a metering mechanism (4), and a drive assembly (5); the feeding assembly (3) includes several feeding boxes 1 (301) for storing seeds and several feeding boxes 2 (302) for storing fertilizer. The metering mechanism (4) is rotatably installed in both the feeding boxes 1 (301) and the feeding boxes 2 (302). The feeding boxes 1 (301) and the feeding boxes 2 (302) are linearly equidistant and fixed to the upper sides of the support frame (1) in a one-to-one correspondence. The feeding boxes 1 (301) and the feeding boxes 2 (302) are equipped with feeding hoses (6) for conveying seeds or fertilizer between them and the plow frame (2). The metering mechanism (4) and the drive assembly (5) are connected by transmission. The quantitative mechanism (4) includes a quantitative disc (401), a quantitative plate (402), an adjustment component (403), and a mounting frame (404). The quantitative disc (401) has a capacity groove (405) on its side wall. The quantitative plate (402) is slidably connected in the capacity groove (405). The quantitative plate (402) and the adjustment component (403) are in movable cooperation.

2. The grain sowing equipment according to claim 1, characterized in that, The support frame (1) includes a support body (101) and a mounting plate (102). The mounting plate (102) is fixed to the upper part of the support body (101). Several mounting through holes (103) are provided on both sides of the surface of the mounting plate (102) in a linear and equidistant arrangement.

3. The grain sowing equipment according to claim 1, characterized in that, The first conveying box (301) and the second conveying box (302) are symmetrically distributed on both sides of the surface of the mounting plate (102), and the first conveying box (301) and the second conveying box (302) correspond one to one. A circular through hole (303) is opened on one side of the lower part of the first conveying box (301). An installation pipe (304) is fixedly connected to the bottom of the first conveying box (301). The installation pipe (304) is connected to the inside of the first conveying box (301). At the same time, a feeding hose (6) is fixedly connected to the lower end of the installation pipe (304). The second conveying box (302) has the same overall structure as the first conveying box (301).

4. The grain sowing equipment according to claim 1, characterized in that, The metering mechanism (4) further includes a mounting shaft (406) and a mounting frame (404). The mounting shaft (406) is fixed to one end surface of the metering disc (401) and rotatably connected to the feeding assembly (3). One end of the mounting shaft (406) is fixed with a bevel gear for transmission. The other end surface of the metering disc (401) is provided with a mounting groove (407) for mounting the adjusting assembly (403) and the mounting frame (404). A movable groove (408) is provided between the mounting groove (407) and the capacity groove (405). A metering plate (402) is slidably disposed in the movable groove (408).

5. A grain sowing device according to claim 4, characterized in that, The mounting frame (404) includes a side frame (409) and a top cover (410), and the mounting frame (404) is fixed to the front of the mounting groove (407).

6. A grain sowing device according to claim 5, characterized in that, The metering plate (402) includes a movable plate (413), a limiting rod (411), and a T-shaped rod (412). The movable plate (413) is fixed to one side of the upper end of the limiting rod (411), and the T-shaped rod (412) is fixed to the other side of the lower end of the limiting rod (411). The movable plate (413) is slidably installed in the capacity groove (405), and the side wall of the movable plate (413) is in contact with the inner wall of the capacity groove (405). The limiting rod (411) is slidably installed in the movable groove (408).

7. A grain sowing device according to claim 6, characterized in that, The adjustment assembly (403) further includes an adjustment disc (414), an adjustment worm gear (415), an adjustment worm (416), an adjustment rod (417), and a turntable (418). The adjustment disc (414) is rotatably mounted in the mounting slot (407). An arc-shaped through groove (419) is provided on the surface of the adjustment disc (414). A T-shaped rod (412) is movably fitted in the arc-shaped through groove (419). An adjustment worm gear (415) is fixedly connected to the center of the adjustment disc (414). The adjustment worm gear (415) and the adjustment worm (416) are driven by a worm gear transmission. A bevel gear is fixedly connected to one end of the adjusting worm (416). The adjusting worm (416) is rotatably mounted on the surface of the upper cover (410) near the mounting groove (407). A reference disk (420) is fixedly connected to the surface of the connection between the adjusting worm (416) and the upper cover (410). The adjusting rod (417) is rotatably mounted inside the upper cover (410). A bevel gear is fixedly connected to one end of the adjusting rod (417), and a turntable (418) is fixedly connected to the other end of the adjusting rod (417). The bevel gear on the adjusting rod (417) meshes with the bevel gear on the adjusting worm (416).

8. A grain sowing device according to claim 7, characterized in that, The drive assembly (5) is fixedly connected to the upper part of the support frame (1), and the drive assembly (5) is located between the first conveyor box (301) and the second conveyor box (302). The drive assembly (5) includes a power box (501) and several transmission shafts (502). The power box (501) is a mature existing technology and will not be described in detail here. Several transmission shafts (502) are linearly and equidistantly rotated on both sides of the power box (501). One end of the transmission shaft (502) is fixedly connected to a bevel gear. At the same time, two adjacent conveyor assemblies (3) on the same side are symmetrically installed as a group. At this time, the mounting shafts (406) in the same group of conveyor assemblies (3) are symmetrical to each other. Meanwhile, the transmission shaft (502) is located between the two mounting shafts (406) and meshes with the two mounting shafts (406) for transmission.

9. A grain sowing device according to claim 1, characterized in that, The plow frame (2) includes a main frame (201), several plowshares (202), a soil covering plate (203), and several fastening rings (204). The several plowshares (202) are linearly and equidistantly fixed to one end of the main frame (201), the soil covering plate (203) is fixed to the other end of the main frame (201), and the fastening rings (204) are fixed to one side of the plowshares (202). The fastening rings (204), the plowshares (202), and the material conveying box (30) are all connected together. 1) The two feeding boxes (302) correspond one-to-one; the fastening ring (204) includes a straight clamping tube (205) and a bent clamping tube (206), which are integrally formed and used to fix the feeding hoses (6) with different functions: the straight clamping tube (205) is clamped to the feeding hose (6) connected to the first feeding box (301); the bent clamping tube (206) is a tubular structure with a preset bending angle, which is clamped to the feeding hose (6) connected to the second feeding box (302).